What does gimmick even mean, and what makes something a gimmick? or is it the same meaning as unique, or innovative?
I enjoy bass and the community because there are so many unique options for everyone. 4-string, 5-string, 6-string, solid body, hollowbody, short scale, medium scale, long scale, ukulele bass, roundwounds, flatwounds, tapewounds, tapeRwounds, polyurethane strings, drop-tuning and other alternate tunings, violin basses, p-bass, j-bass, active bass, passive bass, lefty bass, fingerstyle, picking, slapping and popping, fanned fret, fretless, acoustic, electric, acoustic-electric, upright bass, bass VI, headless travel bass, budget basses, boutique basses...etc etc. And within each of these options there are lots of choices!
I like some of these things, and I'm not a fan of others, but I respect everyone's unique style and choices.