Yes, this one went for a lot. I was watching it and even wanted to make a bid but it was already beyond what I wanted to pay so I let it go. (I already have a few of v1.1 and by the looks of it my best one is a bit better than this one). The reason it went so high is probably because of the good condition. For as far as I can tell, the version of Doom does not really determine the final price. Like MrBlackCat said, the patchdisk may play part in the high bid although Doom 1.1 without the patchdisk is seen less often than with. (Maybe dr-mett-wurst won this, he did mention he wanted a good condition v1.1)
What you saw in the auction was the mail order, the box is almost the size of a full box but a bit less wide and a lot thinner. There is no real 'big box' Doom available in US format. Only the Australian Doom is full size. Oh and of course the shareware by GT interactive.