With all of the disposable BH's on the market Mike is one of the few company's that make a BH that can actually be used more than one time. But even if you do manage to damage it he has a lifetime guarantee. On top of that a 3 pack doesn't cost a fortune. He can't be making anything on replacement blades because even my 12 year old can resharpen the blades. Stingers and Buzzcuts will basically last you a lifetime. I bought six heads last year and unless I plan on changing weights these should last me forever. I guess losing one would be the only reason to buy more.