Final Fantasy Distant Worlds!

Hey everyone, I plan on attending the Final Fantasy Distant Worlds concert tomorrow night in Newark, NJ. I have a question to those that have been to one of these concerts before. After the mess with merchandise at FanFest has anyone who has attended a Distant Worlds Concert experience any issues purchasing merchandise at one of the more recent shows? Things selling out and so on. I'm a bit concerned since I'll be attending the later show tomorrow night and hope I'll still be able to pick something up and hopefully have Uematsu sign something during the meet and greet. Any other info about the concert from those who have been before is greatly appreciated!