Isn’t part of the problem the “successful” bands. They are seen playing Stratocasters, Telecasters, Les Pauls, 335s, Jazz and Precision basses, albeit possibly vintage ones but not much else. So understandingly aspiring musicians think that to sound like them they need those instruments, invariably cheaper copies, but something that at least looks similar. So the manufacturers provide for them in bucket loads!
innovations don’t sell. There’s a history of disasters - Starcasters ( nice to see Snow Patrol using one on Strictly), auto tuners on Gibsons, the weird Roland midi bass, Rickenbacker 5 string basses, Gibson basses designed after 1970, need I go on. If you’re running a business, you need to make things that sell. Failures don’t make profits.