Ha! You just couldn't get enough of GTA last year. Yeah, the one time I did it was for that stupid Annual achievement in Halo 3 and I was so tired by the time we finished. I was going to bed as my dad was getting up for work, LOL. Last year's launch was great when we party'd up with like 10 guys from XBA. Too bad they all hate the game now!
I've only done it maybe 4-5 times and all during our early GTA days last year! There's a point where you feel like you're about to pass out in tiredness, if you make it pass that, you're good but then you've fucked up your whole weeks sleeping scheduled. Not good. I had so much fun though during last years launch!