Pretty much every game Ive bought the last year, usually play them for a week or two and shelf it cause I dont have time.
Playtime:
Bioshock - 2hrs
Dawn of War: Soulstorm - 4hrs
Mass Effect - 2hrs
Lost Odyssey - 20hrs
World in Conflict - 5hrs
Games seem to be falling into 2 categories, the long games that you need to sit at for 5 hr sessions to enjoy, or the cheap thrill games you play for 30mins and get bored.