I currently own 24 electric basses. Of those, 10 have bolt-on necks; 5 of them are neck-thrus; and, 9 - including the 4 most expensive basses I own - have set necks. Although my most favorite, #1, go-to bass is a neck-thru bass (my '73 Rick 4001), it has a lot more going for it than being a neck-thru, to make it my favorite. Rick 4001's and 4003's are neck-thrus; like it - or buy something else...
To be honest? I don't really care what kind of neck a bass has, nor do I consider one to be "better" than another. They simply are what they are. If you want a Gibson Thunderbird? You'll take a neck-thru; and like it. Want an Epi Jack Casady Bass? Set necks only, I'm afraid. And I'm pretty sure that all Fender P-Basses have bolt-on necks... my '78 P-Bass does, anyway.
Again, to be honest? IMO, the only advantage that a bolt-on neck has going for it, is production-line ease of construction. Your ability to change the neck, if the one you buy is a dud- or you just don't like it - is just an after-effect of how it was made. The manufacturer didn't make it easy for you to play "mix and match" out of the goodness of their heart. They did it to make the bass cheaper and easier to make...
In any case, regardless of the type of neck they have, I like all my basses. Like I said; they simply are what they are...
