Permit a non bass-related anecdote:
I had a nice guitar and a crappy old mis-shapen Squier telecaster. (ok, the nice guitar was only an Epiphone but it was a very good one). This sounds silly but I just didn't feel like the Epi had any music in it for me. When I'd pick it up, I'd enjoy the feel and the tone but I never wrote anything on it. Every time I pick up the tele something new comes out. So, like you, I took the notion of selling the Epi but I wasn't sure because it was such a nice guitar. I put it in it's case and put it downstairs where my guitars aren't. Just to see if I'd miss it. Well, out of sight, out of mind. Not once in about two months did I go downstairs to get it. So, I sold it. The guy that bought it loves it, which makes me so happy AND I used the money to buy a midi keyboard and a little Zoom digital 8-track, both of which I'm having a whale of a time with.
Sell it.