The problem with booking flights so far in advance is that they want to change them on you every chance they get.
I get weekly expedia emails about switching the flight numbers or the times by a few minutes but this morning I get one that bumped our Vegas departure time an hour and a half earlier.. Nbd right? Sure, it wouldn't be if they weren't already at 7:30am. Now we have a 6:05am departure time. So we're checking out sometime around 4 or 4:30am and I'm debating if we even bother going to sleep or not..
Right now it doesn't seem like a terrible idea because I'm all jacked up on coffee (small town snowy day = slow day at work) but who knows if it'll be pushed back again..