I booked a Friday and Saturday in March at Delano with an Mlife offer, and then that Sunday at Mandalay Bay with a MyVegas room comp. I called guest services to see how much it would be to upgrade the Mandalay Bay room to the Delano room, and was told it would be an additional $50. Is it worth it to pay the extra money now, or should I try to ask nicely and maybe with a $20 when I check in? It would kind of be a pain in the butt to have to move Sunday for one night, but I don't know if it's a $50 pain. Thanks!