As a person who was in the roofing business for many years, My experiences were as follows: I always went above and beyond when it came to doing anything, as I felt that my name was my bond.
1. Homeowners were generally very easy to deal with. There were rare exceptions but they were few.
2. General contractors sucked. They expected the lowest price, then they wanted you to be there when they snapped their fingers. You would dry in the building, completely finishing the roof, then wait for your money, and wait for your money, and wait for your money.
3. Contractors that worked above the finished roof were animals. They had no regard for the integrity of the roof. HVAC contractors were without question to worst. They left shards of sharp sheet metal, tapping screws, old filters, compressors with oil leaking out, fans, parts, etc etc etc lying on, and ruining the roof membrane.
I guess what I am trying to say is that the term "Professional" only means that you make your living performing a service.
How you perform that service has a great deal to do with how you are raised. IT HAS NOTHING TO DO WITH HOW MUCH YOU ARE BEING PAID.
Those of us who only know one way to do things, meaning the right way, find our reward in a job well done, and the remuneration for that job is important, but secondary.
I personally find the fact that a person cannot buy this or that HVAC part to be an infringement on my rights as an American, and unconstitutional Following that logic, why dont we just say:
1. Only licensed electricians can buy electrical parts.
2. Only licensed carpenters can buy wood.
3. Only licensed auto mechanics can buy auto parts.
4. Only licensed plumbers can buy pipe, toilets, or sinks.
5. Only licensed roofers can buy roofing materials.
6. Only licensed Masons can buy concrete or CMU
Hell, why dont we just start flying the hammer and sickle and throw out the stars and stripes, while we are at it?
I find the so called legal arguments about protecting someone from themselves by restricting sales to the public to be the biggest crock of crap, and the worst infringement on personal freedoms since the word Homeland Security and the Patriot Act were coined.
"Any society that would give up a little liberty to gain a little security will deserve neither and lose both" BF
Go ahead and tell Ben Franklin he cant buy the furnace he wants and see what he would have said.