On a different level, Bonzo's death probably secured Zeppelin's status in rock. By 1980 their live shows were pitiful, In Through the Out Door was their second weakest album behind III, and punk etc was taking over. Had they continued in their sorry state their legendary status may have been jeopardized. Again, I'm not happy Bohnam died, but that may have helped with their place in rock. To wit: Aerosmith *MAY* have fared better in the annals of rock had they quit before Night in the Ruts.
At least he didn't choke on somebody else's vomit, like that one Spinal Tap drummer.