For BYOC, I'd think the biggest draw of the internet would be:
--access to drivers and game patches
--ability to write to the forum in order to keep the poor shlubs who couldn't make it up to date (and burning jealous) on what a good time we're all having.
Playing WoW at a gaming convention? To me, that's like going to the World Series of Poker and playing solitare. But whatever turns your screw...