"I'm interested in building an arcade machine, following the footsteps of Cmdr Taco among many others. Not being all that interested in piracy, I need to find somewhere to buy games. StarROMs used to be the kind of thing I was looking for, though with an incredibly short catalog. The MAME people have a few available for free(non-commercial), but this isn't going to sate my needs. There's an entire cottage industry supporting this goal. People are ready to sell me plans, kits, buttons, joy sticks, glass marquees, and entire machines. That's fantastic, but where can I get the games? I refuse to believe that this entire industry is built on piracy.

http://ask.slashdot.org/story/11/09/...egal-Game-ROMs