We always stay at the Bellagio partially because I love the proximity to the great shops! I'd much rather shop than gamble, since it's usually a sure thing that I'll find stuff to buy

...but gambling can go either way.
The SA's tend to be quite attentive at the Bellagio and Caesars and Wynn...afterall, in order to reach them, you have to walk thru the casinos and they don't know who might have just won a big bundle that they are dying to drop in that boutique.

Dress is very very casual since it can reach 117 degrees in the summer, so often you will see people in flip flops and bathing suit coverups on their way to or from the pool, shopping in the stores.
I wonder how many $$$$ clothes get suntan oil on them.