I think health gyms are probably the organizations who make the most amount of money for the least amount of effort. Think about it, how many people do you know who have gym memberships actually use them? Now don't get me wrong, there are a few people who do go about an hour or so every day or every other day and put their money to use.
But, there are 2 extremes for the most part. People who either don't go at all, or those who go for like 4 hours a day. In the first case, they're wasting money while the gyms say "suckers!", and in the second case, they have no life cuz they just work and go to the gym, that's it. Who in their right mind is motivated to do something like that? 4 HOURS??? Exercise is supposed to help you be more productive in your life, not keep you from having a life.
And what really blows me away is that instead of doing something fun for exercise like playing ball and enjoying nice weather, people would rather spend 4 hours in a building which a bunch of machines and smelly, stinky, sweaty people. Can you imagine: "No honey, I don't want to have sex with you, I have to go sweat on the stairmaster instead."