Are games too long?

According to the NPD 2009 Gamer Segmentation Report, 169.9 million Americans play games in one form or another. They break the US gaming population down into seven groups including PC gamers, secondary gamers, console gamers and extreme gamers. From their data it shows 67% of gamers play up to 6 hours a week, 20% play 12 hrs/week, 10% play on average 23hrs/week, and finally with 3% of extreme gamers playing a whopping 40hrs a week. Do they have enough time to finish all the games they buy?