I did it for the first time last fall. Bought my daughter tickets to go to a concert in AZ with my sister. Nervous as all hell waiting for them to show up and then scared if they would be valid when they went to concert.
You really have no way of guaranteeing it is valid till you arrive at show/game. Yes, the tickets were good but I can see how it would be a very EASY way to get scammed. If you could, I would buy from a reputable site like stub hub or something similar...
Mntman
"Hunting is where you prove yourself"