Even in my most dire of financial times I kept my 1976 Alembic Series I bass.
I've since added a custom 5-String, Precision, Rick 4003, Hofner Ignition, Line 6 Modeling bass, Squier Jazz fretless, Kala Uke Bass, 1971 Gibson EB-3.
And of course, EZBass and all the U-Jam Basses.
Although there are a number of excellent basses to choose from I think my last bass to buy will be a Danelectro long horn. It's kitschy man.
WRT to guitars I own a 1980's Japanese CBS Strat, a custom body Tele (all Fender parts though) and Line 6 JTV. I think the last two guitars I'd like to own are a LP and and SG.