Based on the video "Beyond the Beef" I beleive the size of the Ultra-Luxe casino to be equal to the size of Tenpenny Tower. If I'm not mistaken, there are a total of 7 large casinos and one vault (motel) which I would assume are all roughly equal in size to the Ultra-Luxe. Due to the close proximity of these locations it would make the size and density of the strip about the size of 7 Tennpenny Towers packed into a place the size of 2 or 3 Megatons, to put it into perspective.
I think that the population and size of the strip is larger than what some people are thinking. Remember in one of the interviews it was said that there are busy and slower times on The Strip. As for me the size of the strip (based on the video) seems to be large and potentially full of fun quests.
Does anyone agree or disagree with my estimation on the size of the strip? Anyone else excited to aid the "White Glove Society"?