Sorry but the meeting will be inside. I have tickets in the collection going back to 1999 that are fine, I also have some that are newer but have faded. I think how you store them, how the printer was set up and the paper type all have a lot to do with the ticket life. I like to stress the back as the collectable part, it is printed by a printing press and should last as long as a matchbook, The front which fades expires in 30 to 60 days so is not something to collect for its face value. I try to get tickets with small face value.