I just got back from Best Buy today, I had a much better time than Wednesday. I actually got to play every game besides Mario Kart 8 twice. The wait times were shorter, or at least less noticeable as I had my 3DS with me (got about 40 Streetpasses). I socialized with some other people, someone literally added me as a friend on 3DS as I was wearing a Game Grumps shirt. I got there around 10:30, there were two people a head of me. It was just them and the rep, the demos started early at 12:40. The reps were very nice (they were on Wednesday, but I probably didn't notice as much due to my mediocre experience), and helpful.