I work in a skyscraper. It's got a fitness center for the whole building that has dozens of various aerobic machines, free weights, the whole assortment of weight machines, a "fitness studio" room (the kind with a wooden floor and mirrored wall) and locker rooms with showers. It's pretty darn nice.
The building also has a separate "spin class" business, which is very expensive. Inexplicably, people pay them to use their exercise bikes (while loud music plays and an instructor yells at them) instead of using the ones in the fitness center for free (or biking to work, like I do). Admittedly, the business does attract some idiots who don't work in the building and thus aren't eligible for the free fitness center, but that makes even less sense: they make a special drive to ride bikes!