Yes, this Starbucks is more expensive than your usual - it's connected to a hotel/casino!
That being said, the service was excellent and the staff are friendly.
There are no seats inside this Starbucks. The purpose is to keep people moving in/out during busy times, so don't expect to chill and relax at this location. There are two waist-high bars and one chest-high bar to set your drink on and wraparound windows to Las Vegas Blvd. and the hotel/casino driveway.
Side note: this is also a great location for a quick bathroom break when hanging out on the strip.