Thanks for your advice, the way the prices look i might just have to wait and buy it as a christmas present for myself.
Im also not sure if i would even buy used, i would not want to take yhe risk of buying somebody elses problem.
IMHO. A TIG is a tool that you buy after:
1. An arc welder.
2. A good set of torches and bottles.
3. Drill press, cut off saw, and other power tools, work bench, and etc..
4. Then a MIG with a gas bottle.
5. Plasma. [If you do a lot of cutting].
6. Small lathe.
7. Small mill.
Then it's time to consider a good TIG if you have a couple of grand you don't know what to do with.
For almost any situation you are likely to encounter in a home shop a TIG is the least likely 'big ticket' item that will be of great utility. For instance you can buy a 12 or 14 inch metal lathe for less than the price of a TIG.