A supplier is only as good as the Mfg. behind the goods, that said, you get what you pay for, a supplier as well as a Mfg. that are profitable are in a better position to warranty some "gray" area stuff, this is where the service part of your purchase comes in, that bit you might have paid a little extra for. You will not get this same service from a discount store, they simply can't.
So in the end it is service in a service industry, buy from people you trust and like to deal with.
It never amazes me how carpet cleaners will complain about cheap customers, but turn around and try to save a few and buy the discount item form the discount supplier instead of the premium.
I beleive it starts at the top and rolls down from there, so we as Mfgs. absolutley buy the best materials damn the cost.