"in their narrow view" I like that
For example, I asked to a manufacturer to sell me their used equipment. He said no and told me that because of us, their market share was decreasing.
I simply told him that we don't exactly have the same targets. People who buys devices from me cannot afford new ones and will probably never buy machines directly from him.
So if I don't sell them second hand machines from their brand, they are likely to go get chinese ones (btw I don't have anything against that).
Buying machines from me will increase their brand recognition and even bring them revenue from disposables.
But my little speech didn't seduce him at all