[ConceptJunkie]

Because most people who saw the first 9 seasons over and over and over, thanks to syndication and DVDs, etc., haven't seen the seasons past 9 nearly as much. That's certainly true for me. I haven't seen most episodes in the past 5 years more than once or twice.

Also, the first 9 seasons were just that much better.

[poisonarena]

Thats a good point, but I have tried to watch the the show every year or two, just to see if it got funny again.. And the jokes are all bad, all satirical, homer is too stupid now.. also the characters voices are starting to sound weird and old..