Do you have to be a guest at a Las Vegas hotel to go to the spa ...

I'm going to Vegas this weekend and I was thinking of going to the spa at NYNY hotel, but i'm not staying there. Does it matter? ... anybody can go to the spa at nyny. if you book a treatment you have access to the gym and spa for the day at no additional charge. if you don't have a treatment there is a daily fee charge for using the spa area, i think its $20.00 per day.you will be provided a robe.sleepers and a locker upon arrival. if you want to use the pool while at ...