Now I wanna host a LAN party, but when I get my own room. I'll have a lot of space over for another desk or two, so why not make LAN party space? :D
Btw, you also need to think about how far you/your friends need to move their computers, depending on the type.
Laptop
Not much to say here. Easy to carry, sometimes 6-8 pounds if it's a good gaming laptop. Battery life will be a problem if you don't have any plugs to hook up the charging system.
Desktop PCs
Kinda hard to move around alone. You should really only do this if your partying with neighbors, because annoyed parents will be annoyed when you take their $600 PC up to little Jimmy's house in North Dakota.
I know about mobility of the PC for parties, but nothing about what to DO at one :D