I'll be there ;)
Last year we were able to attract a very diverse crowd -- Aside form fund managers that collectively managed about 30billion, we had people from Apple Retail, Specialized Bicycle Components, Ex Harvard and Stanford business School professors, Phd's, VC people, PR people, etc. The diversity of the crowd lends itself to amazing discussions and insight.
You can read some of the reviews and feedback we've gotten here: http://rethinkworkshops.com/