Putting the moral indignation aside for the moment what someone wants to sell for is their decision. You could say it was a limited time offer, priced to sell and it didn't.

Obviously in August chopper needed the cash or the stuff moved urgently but by November he didn't. We don't know the circumstances, people sometimes do things they later regret when desperate. I nearly sold my whole workshop for £2k after my accident, it's worth considerably more. Fortunately I came to my senses in time.

It might have been better to have said something in his reply to curly but he didn't. That said, it's true that chopper has probably shot himself in the foot and he's unlikely to sell them here now. All you lot are upset about is the loss of a quick profit!