AITA for Not Buying Niece Ticket

Hi, I need a quick judgement, since theres still tickets available on the website.

So in addition to our regular presents we've gotten our daughter a ticket to a concert happening

on the 30th. I'm going too, primarily because I need to take her, but also I like

that band's music and I want to go with her it'll be a nice experience. Today,

my sister in law, my husband's sister, called me and asked what we were doing on New Year's Eve.

We're having a Christmas family dinner as it is. I said I'm not sure I'll probably be

super tired from the drive back. The concert is on the 30th and so we're staying there

overnight before driving back. I told her we'd gotten our daughter a surprise concert