This is not the first Rodeo
with this type of pricing of vintage appliances. However, I think once sold, then, SOLD. Don't go back and say OH OH OH, I need more money. Your cruzing for a bruzing if that had been me Mr. It would not have stopped with a damn email.
About the pricing. As Gyrafoam said once, " if you can afford it and want/need it, then by all means, buy it." I could not agree more. To set a price on something you really want to have is nonsense to me. Some of these sets have gone for much more and 1800 and by all means, good. The folks that wanted them got them.
Steve