Frankly, I am tired of paying $15 for a cocktail at the bar when the bottle only cost $40 at Walgreens. It's still pricier than the normal Walgreens but they are located right in the middle of the strip. Would you rather pay $10 for one beer at the bar or $10 for a six pack at the store? I suggest you to do some shopping here first. They carry a great selection of beers and hard liquor. The walk-in cooler contains a huge selection of draft, import and domestic beers.
Plus they have other essentials. It's convenient if you forgot something like your toothbrush or toothpaste or even a bottle of spermicidal lube it is all right there. They even have fresh fruits and a small selection of sushi. The lines can be long during the weekends and at night but they usually move quickly.