Who can give me the best top 10 on why did the band KISS had to retire?

Im looking for a top ten list like david letterman on my topic above

Public Comments

1. Gene Simmons tongue was hanging lower than his b*lls.
2. They are all pusing 70 years old!?! **EDIT** These are the lyrics to "I wanna rock & roll all night" song. But parodized - "I 'used' to rock & roll all night" You loved us when the band was hot Now we're gonna give it one more shot We're gettin' old, we must be crazy We're puttin' on the make up again It covers up a bunch of wrinkled skin You bring the bread, we'll make the gravy You keep on standing, we'll keep on singing (Chorus) I used to rock and roll all night But now my hairs turnin gray I have to get to bed by nine Rub on a tube of Bengay Haven't picked up my giutar for a while Not since them hula hoops went outta style Its been a while, I'm pretty rusty We'll give you everything we got Would you like to see my liver spots Can you drive us home if we get sleepy If the shirts keep on sellin we'll keep on yellin (Chorus) I used to rock and roll all night But now my hairs turnin gray I have to get in bed by nine Rub on a tube of Bengay I wanna rock and roll all night But I can't stay awake I like to rock and roll all night But then my body would ache I'll try to rock and roll all night If there's some dough to be made I wanna rock and roll all night But I get drowsy by eight. (Repeat chorus until silent)
3. Number 7- Roadies not allowed out of the nursing home past 8 o'clock.