AITA for booking better accommodations for myself on a family vacation while others want to pinch pennies?

Going to Vegas + Grand Canyon later this year and family wants to slum it up in holiday inns. I want to splurge and stay in casino hotel and canyon view rooms... is it rude for Me to let them stay where they want and upgrade myself?

We are all paying our own way, and I'm a 32 year old man. Lol. My mother is not happy that I want to leave them.