It's a nice change of pace from all the high end shops in which only a small percent of folks that go to Vegas can actually afford (or willing to pay the price).
The MMS (Miracle Mile Shops) is located central Vegas Strip at the Planet Hollywood Hotel and Casino. It's like your mall back home (where ever it may be). They have your typical stores like Journey's (shoes), GAP, H&M, Urban Outfitters, Guess, etc. There's a few spots to wine and dine in between each store as well as kiosks that sell everything from cell phone cases to hair straighteners. There's even a theater that has variety shows.
You can easily spend half the day roaming around this place. Given that the decor isn't as nice as other spots like the Forum Shops at Ceasars or at the Palazzo or Venitian, it's still well done and again has more affordable brands to choose from.