They will be huge on Black Friday. A lot of people don't mind getting the older wifi only model for their younger kids. We did it last year so that MIL and FIL could give it to DD for Christmas, as my Mom is always outdoing their gifts and we wanted them to get the thing that was going to make DD go nuts for once. Our experience, which was very good, was as follows:
Our Wal-mart was open all day with the mini IPAD and other Black Friday specials starting at 6:00 p.m. We walked into
Walmart at 4:30. They were already handing out wristbands to come back and pick up the ipads at 6:00 p.m., and there was no line for them. With a wristband you were guaranteed an Ipad that night. We were told we could come back anytime before 8 to pick it up (our Wal-mart was doing this at the automotive counter- there should be a black friday map you can get ahead of time to tell you where to go). We got in line to pick it up and pay about 5:15 becauuse we wanted to get home quickly. We were the first in line to pay and out of Walmart with the mini ipad in hand by 6:01.
They ran out of the wristbands around 5:35. At 5:35 when they ran out of wristbands, they started handing out the guarantee cards. Those people had to take the cards and go to the main register and main line to pay. They were guaranteed that they item should be shipped to them and received before Christmas. Be aware that there were alot of complaints last year in regard to the 1 hour guaranteed items that were supposed to be shipped and received by Christmas not showing up on time, substitute items being sent, etc. It seems like most of those complaints related to the tvs, and the beats- specifically a lot of substitute unheard of brands or beats models and colors. Seems like most people did get the ipads on time. I think I saw reports of several not getting them until December 22, and maybe just 1 of it not showing up until December 26. If you leave with just a guarantee instead of the item at hand, I would have a back up Christmas plan just in case.
For us, it was amazingly easy, and of course DD was thrilled when the inlaws gave it to her.