I don't know if you've ever met a Ten Club member, but we're obsessive about where we sit. Most of us can give you the distance from each band member for every show we've attended. If that sort of thing is important to you, you ought to check out TouringFans.Net. There is a Seat Tracker feature that lets you put in your 10C number and your seat. Then you earn bragging rights for having the best seat.
There's also a forum and photo sharing network so you can meet up with other fans and maybe even that van.