so i'm going to try and go to my first convention ever this year. Does anyone know, if i pay for a one day pass for fri/sat, is it possible to use the pass for sunday if i can't go fri or sat? i know i will only go for one day, but im trying to get someone to go with me, but its kind of hard to predict what day would be best if i buy tickets now. Also, is there a difference in days as far as which one is best to attend? do tickets typically sell out fast for this? Enlighten me, i'm a noob.