The Miracle Mile shopping area is almost 2km long in the Planet Hollywood Casino. It is home to more than 170 stores, 15 restaurants and live entertainment venues
Some of the stores and restaurants along the Miracle Mile are;
Garrett Popcorn Shops
House of Hoops
PBR Rock Bar & Grill
Cabo Wabo Cantina
Scamp & Scoundrel
Sin City Brewing Company
Tristar Sports Memorabilia
True Religion Brand Jeans
Personally even though there are many stores none of them held my interest. There was really no cost difference for me to purchase my items here, than if I bought them in Canada.
What to pay If it's not more expensive then it's sometimes equivalent to why I can buy here in my city. That doesn't make it worth it to buy down here in Vegas.