Sure you wont get rich selling $2 parts, but it builds good will. If I need something in hurry and youve got the part, then I would be annoyed also if you wouldnt sell it to me cause it wasnt worth your time. You had a go at Katzalex about it but I agree with him that these $2 parts get you a $6000 rebuild. Now your argument here is that we all dont know how to run a business, fine maybe we dont, what we can do is tell you how we (as consumers and your customer base) feel though and it is up to you what you do with that.