I say f..k dealers; this is Internet, nothing is sacred (whether you like and agree with it or not). If you don't want to sell at price X to person B who wants to pay the same as person A for whatever reason - friendship, special promo, etc etc. - just say so. There may be a reason someone is willing to pay a higher price, but it should be a consumers' educated choice.

If such approach violates policies of this particular site - no problem, we'll just move the discussion elsewhere.