Not me. I love variety in my shave, and if something doesn't perform quite as well as I'd like then it's fun to try to get better results from it next time around.
+1. I have established a regular rotation of razors, blades and soaps/creams. I agree that it's fun to experiment and get better results on another go round. For brushes, I don't rotate as much, but do every few weeks or so.