I've owned:
1966, 1968, 1969, 4 x 1973, 3 x 1975, 2 x 1976, 5 x 1978, 2 x modern USA - USA Fender Jazz Basses
Noel Redding Jazz, 2 x Geddy Lee Basses, about 10 x Fender Jap Jazzes
1974, 1976, 3 x 1978, 1980, 1983, and a few othe USA P Basses
3 or 4 Japanese ones (best one was shell pink
Couple of Wals
Couple of Stingrays
20 or so 'crappy' basses.
I've had over a hundred I guess (I build them as well) so I know what I want in a bass, which is the primary benefit of having all these.
However, I now only have 3. I guess when you've had a room full of 20 odd guitars, the 3 you reach for most regularly are the ones you keep I guess.
They're all jazz basses, they're all vintage ones and they all play brilliantly!