Vegas, Not Just a City

My 4.5 year old sees me packing for the weekend and the following conversation ensues....

A: Where are you going?
Me: Las Vegas.
A: You lost Vegas? {looks under the bed}
M: No Las Vegas.
A: Lost Vegas?
M: Laaaasss Vegas, it's a city in Nevada.
A {very concerned look}: Vegas is going to Nebada?
M: No, mommy is. The cat is going to stay home.
A: Huh?
M: This conversation is getting us nowhere. Want some grapes?
A: Yeah!

Vegas
vs.
Vegas