It was all about ratings
#“It just becomes, unfortunately, the contradiction of America, I
guess,” Reilly says. “People say they want quality, family-friendly
shows at 8:00 and yet you put them on and what they really want to
watch is ‘Desperate Housewives.’ Ultimately, we are in a business
here. We love the show… It just was not pulling the ratings to
really justify the cost of the show or to justify another year on the
schedule."
(Kevin Reilly, NBC President, about dropping American Dreams)