Thanks for the info herman,GinoB, Divemaster Dennis, and Jim Lapenta. I completely understand the "Life support" thought, but money is money, equipment is rebuildable and cost effective if you get it for the right price. There are many pawn shops within a 50 mile radius of me, and since I live in Florida, there is a lot of equipment for sale by private owners too. I've seen a few good deals out there, but not "the right one" yet. I have also looked online, but if you can't hold it in your hands and look at it thoroughly, it's not worth buying at this point. Ebay can be a great place to see what equipment is going for. Craigslist can be a good place to buy because you can go look at an item before you buy if you buy local. I've bought many items off of craigslist, and almost as many on Ebay. I have friends that have been diving for years that I consult with before buying, and I expect to have anything I buy used, serviced by a professional. I do want to learn to rebuild regs myself. (not something I'd tackle on my first go around) I may be new, but I'm not stupid.
For those of you with the rebuilding of cars analogy, I've done 7 in my life. 4 were frame off restorations on my 84 Jeep CJ7, 1965 Chevy Pick Up, 1966 Chevy Malibu, and a 1971 Cougar XR7 convertable. Rebuilding a car is a lot different than rebuilding a regulator. It takes a lot more patience to rebuild a car the right way than it does a regulator, although a regulator does take that same patience. A regulator can be done in a few hours, a car can take months and even years. Both take a special talent and caution to do it right. I can fix anything if given the tools and the knowledge, but I'll leave the regulators up to the pro's until I learn from one.
From what I gather, some scratches are normal, but excessive scratches can mean they were abused and not taken care of. I just found it interesting that people are selling reg sets for almost the price of new, that look like they've been through WWII. And yes they might look bad, and function flawlessly, but I take care of my stuff and wouldn't buy something that someone else hasn't taken care of too. I feel it will last longer.
Dave