I've actually gone to mostly buying my tools on ebay. I don't buy much snap on, because it commands such a premium price. Its really good stuff, its just I don't use it every day, and I do tend to lose things.
I usually buy stuff that I think is good enough, but doesn't command the snap on premium. I like old mac stuff. Wright, proto, S-K, Armstrong, Williams, Matco. There's all kinds of different brands of tools in my box. I've even got some taiwan/ chinese stuff around- wrenches that I keep around to cut off for limited access/ specialty.
I've got a lot of USA craftsman stuff, and for what it sold for originally, I can't complain about it. It seems like now the collectors have entered into the usa craftsman stuff. The really big stuff in sets, I usually get off of craigslist, the shipping for a 3/4" drive set kills the price on ebay. But if I'm just after a socket its hard to beat ebay pricing, plus I don't have to go anywhere, it gets dropped at the door.