A group of friends and I are really considering going to Wrestlemania 28. From what i've seen online people camp out days at the box office to get really good seats. I want to know how this works into buying them online. Do you have to wait for the box office to sell out then more are released online? I'm really confused about how this works but i'm willing to fork over a good 300 dollars to get some nice seats as long as they are not sold out.