They don't know what they are doing.
I was there at 9:30 for the raffle that an employee told me yesterday was happening. Turns out it was actually a guaranteed list where if you signed up you had your pair secured. By the time I got there (store opened at 9am), no mens sized left.
Then they...
Was just at NBA Store. They did guaranteed pairs FCFS, I believe all men's sizes were gone. I was livid because I was also told that they were going to do a raffle and would have gone earlier had I known.