this trip will be the after 21st birthday trip for my son. his sister, who got treated two years ago during spring break will be flying in, maybe with a friend, and one or two of my sons friends may be joining, though they had better be with getting their airfare. son's request for a show is blue man group, the question is how many tickets, i will treat the group, as soon as i know how many. minimum4, maybe as many as 7 or so. does tix for tonight do blue man group? i will be there on monday the 28th, wife and son early on thursday the 31st, and daughter a little later. i will know how many others, and when, by the time i leave, so if tix for tonight has bmg, can i buy them a couple days ahead of time? any other options as far as saving some money on these tickets? thanks for your help!