I admire Scott Devine as an entrepreneur. He is the antithesis of the stereotype of the skilled musician who is surviving gig to gig. The is a good chance he will come out of the pandemic with more money than he hand coming into it. My guess is that he has moved towards so many P-Basses because new or intermediate players can relate to basic four string P-bass. I think you see everything in his videos is done with an eye towards recruiting more students.