"Should honor" being the operative word. I used to frequent some of the bargain hunter boards, and this kind of thing came up all the time. Companies would accidentally list something for a low price (often because they got the MSRP wrong), people would order, and then much of the time they would get their orders canceled. (Not always though -- I've gotten some great deals). Sometimes the companies would give you a coupon or something to make up for it, sometimes they wouldn't. Generally speaking, what you want to do is not call and just hope that the order goes through, but since this is a preorder that won't ship for months, it might actually be best to just call and see. If only a few people have ordered they might be more likely to let them keep the orders at the lower price.