Oh yeah :) I remember hosting 2 LAN parties myself, playing Q1, UT, C&C, Starcraft. Good memories.

Well, LAN parties are not going to comeback I think, we have way too fast Internet connections. BUT! There is no reason to use those internet to build VPN Overlay networks to use for gaming/computing/whatever. They can get really large like DN42.

I myself run such a network, unfortunatelly, there is no much peers as seems people are not yet interested in such networking.