Rennes Remember the good old days when you didn’t have to stress out about pre-ordering comic convention tickets one year ahead of time? Or when you could just show up at a con, wait in a reasonably sized line and go in without worrying that they would reach maximum capacity? It’s hard to believe, but when I first started going to San Diego Comic Con around 2000, I never pre-ordered my ticket and I never camped out for panels the way…