I'll second that for Van Halen
I thought one of the induction criteria was that the band still had to be performing. Is the Dave Clark Five still performing - or the Ronettes?
**edit** I guess I was wrong - this is right off their site:
Performers
Artists become eligible for induction 25 years after the release of their first record. Criteria include the influence and significance of the artist’s contributions to the development and perpetuation of rock and roll.
Kathleen