Not me!you end up having a system from each.
You talking to a mouse in your pocket?
I started out at about five, on a Kodak Brownie. Rather than sending it in after each exposure, my Dad pried open the case, developed the film in our darkroom, then cut film (from 4"x5" sheets) and re-loaded it!
So with that background, I don't feel any need to try any and all brands, just because they might do one small feature better than the brand I've been specializing in.
When I see something special done on some other camera, I set out to see if I can do it with my camera! Technique trumps technology!