I myself am a game developer, so my opinion may count more...
I plan to release my game in stages:
First 6 months, it will be 40 bucks under a proprietary license
Next 6 months, it will be 20 bucks under same license
Next 6 months, it will be released under the GPL (still 20 bucks for a cd, and old copies aren't changed to GPL)
Next 6 months, BSD-style license.
New version every 12 months
Release under Winshit, GNU/Linux, *BSD, Mac and every console I can find has the power.
Wait for it. It will be big.