Joe, you’d be surprised at how many can’t or don’t know how to “be professional.” A fair amount of my work is fixing/redoing jobs of other “professionals”.
Do you hire an auto mechanic based on whether he uses Snap-On tools versus Stanley tools?
Those few that do hire based on kit are using us as a link in the chain. It boils down to a compatability issue. That’s certainly understandable. Otherwise, 90% of the time the client could care less. That’s what my experience has been over the past 35 years.