Not doubting your words at all, I would question just how much the customers bringing in their equipment that they obviously can't diagnose or work on...exactly just how many truly are putting additives and stabilizers in their gas for pre-mix, or straight gas engines. If it's a simple, pull a carb, clean the gum out, hit it with at least carb and choke cleaner, drain it, hit it with a compressor...I simply wonder how many are bringing OPE in that has had gas or mix sitting in it since the season before, with nothing added to the fuel. Sounds like damn good business if nothing else. My stuff sure ain't got those problems and never has. Just sayin from my own equipment and experience.
Now, 2123 will have to figure out another 'drain it everytime after use' post, lol. I guess in AZ, with a sand/gravel/cactus front and back yard, ya may not be runnin your stuff like 99% of other folks do.
EDIT...Rockjock, you folks winters are a lot more brutal and much longer where you are for sure than where I am. I can certainly understand the chances of gas/ethanol gumming things up a heap more. Extreme cold for lengthy periods of time is probably much more of a factor in the equation for you folks.