This is a common problem. I've experienced it myself, even thought the most basses I ever owned at one time were seven. The thought of having to sell off any one of the basses will sometimes feel like breaking up with a really beautiful girlfriend... some say it's even harder than that! LOL!
My suggestion would be to first keep the basses which are most rare, valuable, hard to find, and which have the most resale value. (Although the argument could be made that keeping these types of basses is counter-intuitive if money is what you are after). Then sell the basses that don't provide the "must-have tones". For example, if you love a P-bass tone, then definitely keep the P-basses, or at least a reasonable number of them. If you are a burpy-tone type of guy, then keep anything with burpy tone...etc.
If this still doesn't help solve your dilemma, then get a wife. The nagging will get to you soon enough and you will have no other choice but to sell.
My suggestion would be to first keep the basses which are most rare, valuable, hard to find, and which have the most resale value. (Although the argument could be made that keeping these types of basses is counter-intuitive if money is what you are after). Then sell the basses that don't provide the "must-have tones". For example, if you love a P-bass tone, then definitely keep the P-basses, or at least a reasonable number of them. If you are a burpy-tone type of guy, then keep anything with burpy tone...etc.
If this still doesn't help solve your dilemma, then get a wife. The nagging will get to you soon enough and you will have no other choice but to sell.
