[martinmakesgame]

>perpetual refund period that covers "DRM or server obsolescence."

This seems like it would still be an issue if the company providing the game goes out of business. I've bought games from both PlayFirst and AmbrosiaSW and even after buying the games, the servers that verify registration no longer exist or work. It's disappointing that awesome and fun games aren't able to be played because they can't phone home.