I had 11 basses back in 2014
I liked having 11 basses but to be honest i raraly played them, so decided to sell them all and start from fresh
I only have 2 basses now
a fretless which should be on tge way soon and a fretted, now I'm sorted!
Fretless is my main instrument and play fretted from time to time but I love to have tge option
one bass only I'm not sure
but a bass of different kind is what suits me the most
1 fretless
1 fretted
and a double bass if you play one