50 bucks more gets a blu-ray drive. Pretty good deal for people who don't want to piece everything together. And for 350 bucks...I'm not sure you could build anything this good individually buying parts.
I'm even considering purchasing one as it's cheaper than the current idea for gf to play WoW.
Cheap enough for a low-end gamer, but the board......nvidia chipset, ugh. If it only had a board with an AMD+ chipset, it would be far more attractive.