Necessary to camp out for the wii?
Define "camp".
If you mean a handful of hours, then I'd say, yes, it's a good idea. Why not err on the side of Caution?* If you mean literally pitch a tent for a Wii, then unless you live in an area where the population far exceeds the options, I'd say no. Sure, many will walk right up to the back of a line within an hour of opening and luck into a Wii, but I really, really,
really think the Launch Day demand is going to be greater than most message board posters care to consider. I call that typical gamer myopia and
hubris.
The thing is, many people are probably already adjusting their holiday strategy to eschew the PS3 and get the Wii instead. Smart parents that aren't insanely rich will just tell their kids to buck the

up, that it ain't happenin' this year with Sony. EBay scum will just get friends and family and anyone else on their cel phone list to linesit with them, selling multiple items at a much smaller profit margin than one item at a 200% markup. You don't think this will happen, anyone? Your loss.
Also, getting there earlier ensures a much better chance of getting the games and accessories that you want. I assure you, extra Wii remotes and nunchuks are going to be impossible to find for at least a week in-store after Sunday morning. Who
isn't (including eBay

s) going to buy at least one extra Wiimote/nunchuk combo?
*---Seriously, you're not likely to find someone on these boards that enjoys linesitting less than me, but what's the harm in putting in 6-8 hours that turn out to be 90% unnecessary? I don't think that's a ridiculous amount. If you get to a store and only a couple people are there, then go grab a coffee and a doughnut from a gas station. Read the damned Sunday paper in your car. Kicking yourself for losing a few hours' sleep is far less excruciating than bashing your head into the dashboard for arrogantly and naively thinking that showing up thirty minutes before store open would be plenty.