the line in vegas was quite long. I was at about the 2/3 mark and it took me over an hour to get in to buy one. We have a second, much larger store now. Hopefuly this will help with long lines at apple launches.
There was no Apple Store in Ann Arbor last year, and the line's at the AT&T stores were pretty long. This year there's an Apple Store and 2 AT&T stores within a few miles of each other, so I think the lines won't be too bad.