In addition, never underestimate the hankering for the early golden days of electric guitar & bass by users. Guitarists especially are stuck in ‘50s when it comes to designs (not all obviously) and the big 2 feed this with an unending supply of reissues, year in, year out. Bassists are a little better, but not hugely. Look what happens every time Fender bring out a new, perfectly good design, it’s mothballed in pretty short order.
Perhaps when newer players become the go to guitar heroes, they will be a shift in manufacturer perceptions by users. Chris Buck, for instance, uses Yamaha Rev Stars extensively, Mateus Osato is mainly a Suhr player, Lari Basilio is an Ibanez user. These are some of the up and coming in the guitar world, the new breed of bass players (League, Dart, etc) still seem to be old school users (giving MM old school status in this instance).