This whole thing is stupid. They set the price. In the product they sold, they made no guarantee that the price wasn't going to drop--lack of a future price drop wasn't part of the product. If anything, the main 'intangible' in this product was 'smugness'.
So, they set the price, and people bought it. End of story. They didn't force anyone to. If someone thought it was worth $600 when, as Cringely says, the 'real' price was the current price, then you made the mistake.