I think they may for some; for a lot of us, though, who played them when they were new items for sale, the memories . . . . can be less than pleasant, and as others have pointed out, a lot of them are simply out of business and gone, never to come back, or are purchased names that have no connection whatsoever to the original company, say like the 'Acoustic' amps they sell today that are totally removed from the Steve Rabe era Acoustic Control Corporation.
Bass amps and cabinets have made tremendous strides with power and clarity and lightness we could only dream of 'back in the day'. I would never go back to lugging underpowered heads, hugely heavy cabinets, or dealing with all-tube amps, but others would certainly have a different outlook. There are some that have a fondness for old JBL speakers, old amp heads and combos and the like. I'm not . . . one of them.
I'm a huge fan of the old Trace Elliot, but that's long gone, and the idea of lugging that stuff around now would rule it out for me. Hartley Peavey once had a standard rant about brand names that were bought and sold, that they were a ghost of their original builders; I suppose he retired that speech, as the TE he now builds is a vastly different product range. At least it wasn't on 'Undercover Boss' . . . .