I have replaced each switch at least twice before I went and bought steel bodies toggles. Only problem is they do not make steel bodies illuminated toggles. Well, they might, I have just not found them.
I am convinced that the switches break over time due to the billet bezel. Expansion and contraction in the southwest heat is what I stand by. This said, so not even get me started on my gauges. I am sure MasterCraft has enjoyed replacing those 4 times due to cracking!