I can't have basses sitting around that I don't play - but that's me. Right now I'm up to five basses and will likely drop down to four because I find that while I like the idea of a "backup" or duplicate, I never use it, instead using my first-call instruments. If you're not a 6 guy, no reason to have a 6. I'm sure Ken could find you a pretty sick top for another 5'er.