i guess there are more than 1000 in circulation already, given the high amount of copies on ebay etc.
regarding cancellations, as far as i know they made the cancellations from the "mistake" first live time (with the higher price therefore lots of people cancelled) available right after it sold out so shortly after the official pre-order time. it was OOS for an hour or so, but zavvi put up the cancellations they received immediately. guess there weren't that many cancellations afterwards...
only thing that confuses me, is that eureka has stock to replace the scratched copies.
it's a thrilling steelbook release story, something that keeps the collecting hobby alive and exciting imho.