Take a look at the Kinunir, CT Adv 1. That had the first use of Barracks in place of staterooms to house troops. Extra space for he troops was on the plans to make it about 2 tons per person.
Slot machines/one armed bandits are about 30" square. The latest machines are multi game machines; you can pick the type of game, slots, poker, mahjong, ect, that the victim/gambler wants to risk his money on. Table games are about 4 by 10 ft, arranged in a long loop, with about 5 ft edge to edge and an 8 ft wide corridor for the dealers, pit bosses, and other essentials.
The casinos maximize the use of floor space to get the optimum number of money gathering devices allowing for gambler comfort. A comfortable gambler will spend longer at the machines, thereby generating more cash for the casino.
Every casino incorporates a buffet, a high dollar restaurant, several bars, showrooms, a dance floor, and some include multi screen theaters. Entrances near the parking areas are always far from the showrooms, buffets, and theaters so patrons pass a maximum number of gambling opportunities.
Although prostitution is illegal in Las Vegas, it is legal and available just across the county line, lighted by a rotating red beacon at the top of a very tall pole. Limos are very ready to take anyone to those red lit places.