People don't respect trades until they need one. Then they gripe about how expensive it is. That is particularly true of service techs. Customers will get mad if you don't have the part on the truck but they don't grasp how expensive it is to keep that truck stocked. I was involved in the logistics back in my former career in the computer biz. Even in the 90s, a van and the parts they carried had a "carrying charge" close to $100,000 a year, before we put a guy in the truck. That is not the price of the parts, just the expense of carrying them and the amortized cost of the van.
