buldog5151bass
Kibble, milkbones, and P Basses. And redheads.
If you are gigging regularly, you can make an argument that it's good to have a backup (although in almost 40 years of playing, and over 30 playing out, I have never had a bass go bad on me). Don't just dump them cheap. Put a fair price on the two basses and the amp. When you get a fair price, sell one. Then re-access from there.