I've never been to a midnight launch before, and don't intend to go to one for Brawl, even though it will be my favourite video game of all time.
I've been waiting years already, I'll be able to wait several hours more and get Super Smash Bros. Brawl in the morning on February 10th.
Although, there is a chance I might not end up being able to get it that day, I haven't reserved a copy, so it could quite possibly be sold out, but I'm usually pretty fortunate with that sort of thing.
I'll have my brother go to Wal-Mart to try get it, I'd love to get it myself, but he works from 10 AM until midnight on Sundays, if I went in with him, I would be stuck at his workplace the rest of the morning, and all afternoon and evening...
Either way, whether it's gotten on the 10th or not, February 11th will be the soonest chance I could get to play it, I'm hoping to not have to wait any longer than that.
If my brother is able to get a copy on the 10th, then I'll stay up until he gets home at around 1 AM, just to see the game (not play it quite then, as much as I'd like to), then go to bed to get some rest.
Then when I get up in the morning (likely at around 10:00), I will from that time, to 6:00 PM, try to fit in playing it for about 5 hours, then starting at 6:00 or so, I will play for the whole evening until 1:00 AM!
I'll likely be spending most of the time that I play that day fighting through classic, building a stage or two, and possibly checking out Subspace Emissary some, as well as maybe a few Special Brawls, and some Target Breaking, and perhaps event matches, probably a little of almost everything!
It's going to be a great day, I can hardly believe that It'll be out in 6 weeks, and that I'll probably be playing it 6 weeks from tomorrow! After all of these years, it's day of launch is finally drawing near, less than a month and a half away.
I'm starting to get more excited about it than I've been in some months now, it's so close, and I apologize if I'm carrying on, but I'm just such a huge fan of the Super Smash Bros. series, and Brawl will be so much better than Melee, which is a great game.
But yes, once more, to answer the question directly; no, I won't be going to the midnight launch, I'll be having pleasant dreams of it in wait for morning then as long as everything goes well, should be playing it the next day.