It's all about the money.....I read it somewhere that say for shows like "ER", "Chicago Hope", "The Practice"..or sitcoms, the TV Network has to shell out a lot of money to produce (inflated actors salary- like frasier got paid up to $500,000/episode for Kelsey Grammer alone, NOT including everybody else), etc..etc...IF the show went passed the 2-3rd season, then the network starts recouping their cost. But with all these new reality series, all you have to do is pick a nice mansion, some 50 beautiful, superficial, gold diggers, pay some hunky Joe Blow from the street...pay him 50 grand and voila! you got yourself a reality show...and it has been proven, this new formula works...sad...but that's the reality.