That's "funny", I think you meant, and you're right -- just because you feel betrayed because their music has evolved, they are no longer cool. Makes perfect sense.
And who are you to tell a band (or anyone else for that matter) when they should retire? What makes you such an authority? There are millions of concert goers and album buyers that would very much disagree with your obviously biased and uninformed assessment.
And there are millions more that agree with me. They haven't put out anything worthwile since 1995. Also, I personally couldn't care less about that whole Napster thing.