My original goal when I first got A horse again was that I would keep it
 at the local boarding barn.  I HATE fixing fences and making sure all 
that is farmlike is just functioning.  I have a horse, I want to be with
 my horse not doing farm chores.  There is a nice boarding place about a
 mile away from the house that I had utilized in college and thought it 
would be nice to return.
The day we got Piper I 
decided that I was going to be cheap and keep her at the house.  The 
cost for boarding was around $250 (not bad for full board) but I got to 
thinking how much cheaper it was at my own house.  I already pay the 
mortgage.  I have the money invested already and the land available.  
The trailer is at my house so there was little reason aside from an 
arena and maybe the round pen.  I HAD been looking for some camaraderie 
though but taking a tour of the barn didn't reveal the environment that I
 had left years ago.  If I was going to be on my own, I might as well be
 at home.
So the thing with horses, even brave 
headstrong, head mares like Piper, is they still want to be around other
 horses.  Our property isn't really protected from wildlife and I've had
 my old boy Athos run through the fence before when he was housed 
alone.  Within a week, Piper was permanently set up in the corner 
nearest the closest horses and wouldn't leave it.  
Awesome...
So
 yes, the need for another horse (or to commit to the boarding place) 
was upon me and fast.  I knew what I wanted: something that lived off of
 air, was useless and would just be a companion.  I didn't really want 
to train another horse and I didn't expect my family to participate in 
horses.  I cruised my normal online places and began to entertain the 
idea of something more like I would "normally" own: taller, more TBy, 
possibly less of an easy keeper...  I could have it be the yin to 
Piper's yang...  And while I was in my Genetics 301 lab "working" I 
found her on Craigslist for $800.
I loved her eye and I loved her alert but not panicked look mixed with 
the relaxed pose.  She was a little thin, but so is everything you find 
in dark corners with horses these days.  I texted the "owner" and found 
out they were cosigners that sold horses for other people.  
I like middle men.
Middle
 men are great because while they are trying to sell a horse, they have 
to maintain a reputation.  Granted most horse people don't have that 
great of a reputation but it is what it is.  I asked some basic 
questions the ad didn't address: height and age.  She was 15.2 and "at 
least" in her mid teens.  I liked the first answer but the second one 
didn't make me excited at all.  I started pulling away and then when I 
got home I debated the pluses.  If she WAS older and WAS kind like I 
suspected, maybe she was a nice ride?  She'd probably seen and done a 
lot and while that can be bad, it can also be very good.
She
 was literally 5 miles from my house so I made arrangements to meet her 
that night.  She was a bit head shy but not overly so and the lady 
warned me of some habits they had found out.  Oh and she revealed they 
had only had the horse about 3 days.  That's a plus in my favor 
normally.  We went to ride her and the lady mentioned that she was hard 
to mount and proceeded to pull her head to the side as she mounted the 
slowly spinning horse.  Um.  OK?  But then the mare went through all 
three gaits nicely each direction with nice transitions and I was like 
wow.  Easy.
Now it was my turn and the lady held the 
horse for me.  There was no spinning, nothing so I just got on.  We 
worked through our paces and she was a very kind horse.  There were 
items of a horse nature littered around the arena (barrels, cones, 
poles, etc) that she approached each with a "go around this?" "go over 
this" type of attitude.  All three gaits were simple and while she 
needed some work on balance, it was a nice difference from Piper.
At
 this point I'll talk about some things people don't like to mention 
about horse ownership.  First, when you're away from horses you lose 
your confidence around them (if you're a smart person that understands 
horses).  The idea that they're likely to kill you in 10000 ways becomes
 more apparent when you return.  While I had owned Athos and Marco for a
 while, I had ridden them little.  I hadn't done ground work with them. 
 Aside from feeding and making sure they were healthy, I'd done little 
since before my son was born.  Now that I was horse hunting, it had been
 almost 5 years since I'd ridden for any duration and basically 15 years
 since my glory days.  The muscle memory is still there and the 
knowledge is still in my head.  When I get on a horse, I feel like I'm 
home.  None of that had left.  What HAD left was my muscle STRENGTH.  
They KNEW where to be, but I couldn't keep them there.  Old injuries I 
had rehabbed from before my son were now borderline dangerous in their 
stiffness and inability to function.  I had no abs.  I have no 
shoulders.  No leg definition.  After years of being tight as a tick on a
 horse, the feeling that you can't keep things where they should be when
 a horse is behaving makes you nervous for when it won't.  Knowledge 
tells you that you need to just "get back in the saddle" and work on 
those things.
As much as I like Piper, she needs a 
lot of work.  She's very catty and fast and sometimes its hard to 
stick.  Not exactly a confidence builder.  What I found in Katy was what
 I needed: a treadmill.  This was a horse that I could use to get into 
shape while I trained Piper up and provided her with companionship.
I
 hopped off and began looking at her legs, teeth, etc.  Her teeth were 
worn completely off in the front (cribber probably) and even broken into
 a V formation.  I was lost on that at the time but later realized she 
had a penchant for cribbing on T posts, hence the weird wear pattern.  
Her ears were very sensitive and she needed weight.  They had no current
 coggins on her and there were a few other things.  I firmly offered 
$500 after pointing out that they would need to put that into her for 
feed/vet bills.  The owner was called and the deal was made.  We picked 
Katy up the next day and brought her home to begin the next chapter in 
her life.