On the Pointlessness of "Hours of Gameplay"

KaiEl writes "An article on TotalVideoGames is quoting Rockstar Games co-founder Dan Houser as saying Grand Theft Auto: San Andreas will have 150 hours of gameplay. That's all well and good, but what does it really mean? The way I see it, a game that I enjoy for 20 hours is much better than a game that I hate for 150. So why the obsession in video game media with quantifying gameplay time?"