I will summarize my long winded post below the first paragraph...
A PT is a great tool platform that is easily maintained, repaired and customized by someone that has basic shop skills. If you buy one of these machines, be prepared to be your own mechanic from day one. There is no dealer support. Take the PT for what it is and what it can be. Get your support systems lined up before you purchase. Make sure they are there. If you cannot find these support systems locally, are not comfortable working on machinery, have doubts about your abilities, want or need someone else to do your major repairs, and realize that you will get aggravated by what you expect from the factory, but won't get, then you should be looking at a different machine.
In my opinion, there is nothing that comes close to the PTs versatility for the price. Nothing even close. The PT is a great tool platform that is easily customized and easily repairable by anyone with basic shop skills. I've told people this time and time again. I've also discouraged my share of folks from buying a PT and going with a machine with dealer support. When I purchased PT was pretty clear that any engine warrantly problems would have to go through Kohler and any hydraulic pump/motor problems would be dealt with either by PT or the pump/motor manufacturer on a case by case basis. I could ship it back to PT for repair, too(yikes, that would be expensive). But it was stated and I was warned by old guys here on TBN, too, that I had no dealer support of any kind. I was O.K with that from the beginning, so I purchased. I can weld and the PT is solid steel. No problem. I enjoy working on and understand how small engines work.The Kohler engine was tried and true. So I looked around my town for Kohler engine support before I purchase. I found a great one for parts! They also have an internet presence.
C & C Distributors Inc. - Home We also have a few good hydraulic shops if I need consultation. But my biggest hydraulic resources have been
Burden Sales Surplus Center - Hydraulics, Engines, Electrical and More and
Baileynet.com: Main Page. And I like to think that I have helped encourage discussion on the PTs here on TBN. Without this resource, many of us would be out there on our own. What a great bunch of helpful folks!

And it is not just the folks in the PT forum. Many TBN members with different tractors are willing to offer support and advice. These machines attract the tinkerers. That's because people see the potential in the design of the machine.
You know, I have had no major problems with my PT425 in almost 6 years( only have about 300 hours on it). No more problems than I have had with any other piece of heavy equipment I have owned or operated. Especially with the beatings I have given this machine out on our property. However, I cannot ignore that many folks have had lots of problems. Some very minor and some very major. I know the feeling of spending a large amount of money, only to have something fail way before it should fail. It sucks. And while it has been pointed out that many folks come to TBN searching for repair tips on all brands of tractors, many folks purchase a PT after doing research here on TBN, then have a failure within just a few hours of operation. Just a few things to list that PT could take care of are armoring the hoses where they pass rub points, cleaning out the fuel tank and hydraulic tanks after assembly, the brush hog deck cracking issue, etc... theses are real problems that could be solved easily and inexpensively and are frustrating to a new owner. It does not help PTs image at all. However, it appears that they are doing fine as a business, so someone is buying their machines. Probably more commercial users than home owners. I know that there is a local landscaper in my hometown that has two PT400 series and one 1430. I see them being trailered all over town behind their trucks. I know of several commercial users here on TBN that make money with the machines. Something has to be right about them. I've beat the heck out of mine and the only problems I can blame on the factory are:
1. The parking brake is too tight.
2. The brush hog deck crack.
3. The mower decks could use tubes in the castor wheels, but I have found that if I over inflate them, they don't pop the bead unless I twist them against an imovable object. They should be solid wheels on the brush hog.
I am very satisfied with what I got for the money and would purchase one again.