I spend zero. Have seen some of the games though and the technology looks awesome. I can see how it would be easy to play for hours.
I haven't play much for a long time but when I was younger I played a lot of Red Alert, Red Alert and last year I played a lot of Red Alert 3. I am a little bit interested to buy Starcraft 2 however I am very easily addictive so I know I will spend a lot of more times which is healthy for me with that game! =)
2 hours a day, playing Killing Floor. I'm ashamed of myself, I could be working those two hours instead . Oh well...
I have had days where I played Call of Duty for 8 hours I guess. Playing games on the xbox360 as my notebook can't handle it.