Vegas not being my favorite place in the world, when I am there I stay as close as possible to whatever I am doing so I do not have to be bother with car rental and other bullshit. Even if I have to pay a bit more. Of course, this generally results in my hotel being non-refundable, so given the OP scenario, I would have to rent a car, drive down before the event, find somewhere to stay because after having been up for 20 hours or so (I am an early riser) I do not want to make a long drive back. Which means I need to find a last minute place to stay.
In LA
On NYE weekend.
So, great, I get to spend even more money on either an expensive hotel or a shit-box with bloodstained sheets from some whore who forgot her maxi-pads and jizz stains on the walls. Great. Then of course there is the two day car rental. On an expensive weekend.
And that is best case scenario. The other things I had planned to do around the event are now even much harder or far more expensive as well.
Sort of like why, when I went to UFC 200, it was kind of a big deal when Jones fucked that up too. Nothing was refundable as I had burned frequent flyer miles and my rewards points at the Mariott. Now, I was, of course, still going to watch the fight regardless, but had they moved it I would have been fucking pissed. Actually, even more so because I had plans to visit friends that I had not seen in about a decade.
So, other than expense, inconvenience and plans, as well as possible additional issues with family, there is nothing wrong at all with your scenario, TS.
Cliffs:
Idiot