I agree. I think it will happen anyway. The price will go up in the weeks leading up to the release date, then it will be released and boom the price will fall as eBay as flood with extra copies bought for 'trade'.
Why? I've ordered almost fifty titles and only had a couple that were damaged. Ordering two of everything can be very expensive and most of the time you end up stuck with the spares. I had to send back Dumbo and Lady and the Tramp as there were no takers even at cost price including postage. It's just not worth the hassle for me, I'd rather just take my chances.
They take copies from other people who genuinely want the Steelbook just so it can sit on their thread for months whilst they try to charge an obscene amount of money or trade it for Iron Man (or any other rare title that no-one in their right mind would agree to trade for it).
I hate it when members buy spares and then offer them to other members as favours. Even worse are those who hold group buys for titles like this. If people didn't do this in the first place, there would be enough copies to go around.