10. They allow a greater amount of people to pass through
9. They prevent drafts and isolate noise from entering a building
8. They make your business establishment, or house, look prestigious
7. They attract Japanese tourists and also elderly German ladies
6. If you decide not to exit at the other end, and continue to walk in a circle, you will go back in time, to the point in time just before entering the door. After doing this it's a good idea just to walk straight through the door normally, cause you look like an idiot when you walk in circles, drawing unwanted attention to yourself
5. They smell nice
4. They promote growth in the glass making industry
3.5. They promote growth in your testicles
3. If you are stronger than other passer-throughs, it allows you to trap them in a glass prison. (eg: If you are walking through with your weak girlfriend who is not one of those horse-piss-injecting body builders. Or... if she is stronger than you, then you can persuade her to have children, go up to the hotel room, poke her, wait nine months, teach your infant to speak and understand humiliation, come back to the revolving door, walk through with your all too powerful lady, wait for your feeble and sensitive child to enter, then BAM! lock'em in, and feel like a god)
2. Les Français ne comprennent pas encore la porte et il fonctionne comme un outil parfait pour les clients de filtre
1. When a group of people enter a building through a revolving door, the last person through is a tool must verbally yell out that they are a tool. This is a sacred rule of the revolving door and must be strictly followed and respected. It is also the thing I like most about la porte tournante.
