I'd have to agree with SuAside here, the development of Minecraft(http://www.minecraft.net/) is purely motivated by the payments of the people. You just put 50% of the price now, and you get to play the In-Development version of the game. When the game's fully released and done, you just bought it at half the price.
This wouldn't be too bad if the final price of the game gets cut with what you pay for the demo, and it might be good enough to avoid vapourware.
EDIT: Maybe they got inspired after seeing people are buying SC2 beta keys at eBay
This wouldn't be too bad if the final price of the game gets cut with what you pay for the demo, and it might be good enough to avoid vapourware.
EDIT: Maybe they got inspired after seeing people are buying SC2 beta keys at eBay