Three cases in one night may get hectic. I'm fine with 2 cases and if you think it's too late, do the next one a day later. Ultimately everyone will be anxious to see what happens in one night.
Unless you have heart problems I'd recommend some energy drinks and a cute girl to help with the organizing.
I may not be the oldest member here but I paid $8. an auto and shook Joe DiMaggio's hand at the Armenian Church in NYC once. I do not use "gift". If you need an extra buck, add it in.