Some dealers will probably get a chance to get their hands on a few before the con is opened to the general public, won't they?
There are several dealers on eBay right now offering them for $60 a piece (with lofty $10-$13 shipping charges, however), and with anywhere from 1 to 6 "available". You guys are probably right... they'll most likely be available for less later, especially after everyone from the Con tries to "flip" theirs for a quick buck... but I grabbed one of the pre-orders just in case. I'm a sucker for a scantily-clad, Byrne X-Men era, feeling-drawn-to-the-dark-side Jean Grey
As for pre-orders, I'll occasionally take the risk of ordering over a month ahead of time based upon a seller's feedback.