I've never thought of a band initial decal, kind of novel to be honest. That said though, IMO, I'd keep the Hondo and the SX, can't say I've ever even played a Dean, not even sure if I've seen a Dean bass IRL. If I had a perfectly useable bass that I needed or wanted to be rid of, and was functional but not valuable, I'd donate it to somebody or some organization. Maybe there's a school or a church or toy drive for kids. I'm not trying to guilt you, but I've learned recently that these things, while trivial to us, could mean the world to somebody.
I will say though, when it comes to my instruments now, everything fills a niche that the others don't, the active five string has rounds, the four string has flats. They're both fit for different applications.