...I'm heading to LAS VEGAS tomorrow morning...
Oh, cool. I used to live in 'Vegas (Well, in Henderson, which is right next door to it -- the good side of Henderson, not the "Hender-tucky" side.) from '11 to '13. Where will you all be staying?
Congrats to your mom on her 50th. Making 50 may not be so much of an accomplishment as making 70, but it's definitely an accomplishment, nonetheless.
'Vegas can be a great town to visit, (I still have family there,) but to live in, it's a very, very hard, cold, unforgiving place.
Great place to be a tourist, though. DO watch for the traffic and be careful of all the drunks on the sidewalks. Have a great time!