Personally I think it is sad. FB tricks people into paying too much, and then some wealthy guy who should have been able to evaluate the offer properly gets fooled, but because he can afford the loss he tries to justify the whole thing, so that perhaps he can pull the same nasty stunt like that sometime in the future.

Using Cuban's own auction analogy, he was basically defrauded by buying a 'fake' collectors item, and thinks the fault lies with the purchasers (for not recognizing a fake when they see it) not the sellers or the auction house for perpetrating this ruse.

Paul.