AvatarOfLight: While both DOSBox and GOG are totally awesome, the combination does puzzle me a bit. We don't need to pay GOG to provide us with a free program after all. I just wish there was a better method of making games compatible with recent OS.
DOSBox provides a method of running the older games, and GOG not only tests the compatibility, but also does the deal making with rights holders in order to sell the games here.
If you didn't have GOG, you would have to find someone else that fill that role and I'd bet finding someone to do it as well wouldn't happen anytime soon.
Don't forget you have the download when you want service that comes with GOG purchased games as well. While I have all my games archived, it's pretty awesome to be able to download my games and play no matter where I'm at. :)