The one that I know of which is very successful sells individual work spaces and helps them customize it to their needs. In the middle of it all is a clubhouse with showers, locker room, and a huge lounge with WIFI and big TVs. I imagine it has more Ferraris, Lambos, and other rare cars than anywhere in the state.
Here is an article on it. The developer is a good friend of my fathers.
http://www.bizjournals.com/wichita/stories/2007/12/10/story2.html
Here is the actual website with a gallery.
http://exec-u-stor.com/photogallery.html