Earth orbit has:

  A continuum of accelerations, down to zero g.

  Hard vacuum.

  A sense of place that is not Earth surface.

Do they look like they are having fun?:

http://images.google.com/images?q=zero+gravity

they do look like they have fun: http://images.google.com/images&q=rollercoaster+people ,but that doesn't mean I want to live in a rollercoaster

Indeed. Moving away from the axis-of-rotation increases acceleration. When you are ready, you can go back to zero-g, or .5 g, or 1 g, or 1.5 g, etc. Instead of having to pay thousands of dollars each for airplane parabola rides, it is all right there.

For the same reasons that ski bums live near ski slopes, zero-g bums might live near zero-g. When you live in a spinning orbital habitat, you can have rapid inexpensive access - a veritable season pass - to a variety of acceleration levels.