One idea your question brought to mind is a form/list of people who really want to come and do it, just at a later date. Will set that up...
The article/link above makes the price clear, and also why we charge - we keep things simple and don't do the recruiting model.
The homepage doesn't mention price nor mentors; we wanted to keep it short. We'll likely add the price there.
Both the price and prior mentors (some are very likely to return) are clear on the offer landing page: http://hackerretreat.com/batch-next/ The exact lineup of mentors is TBD because we want to be sure to bring in people that participants want/need. You can judge from our past mentors, and our posts, what the caliber of mentors generally is.
It's at the Microsoft product showrooms? I mean this is pretty much Microsoft's take on the Apple Store, I wonder how corporate/marketingy this 'retreat' will be.
Only place I've actually seen a Bugatti Veyron (not to mention loads of VW/Bentley/Skoda/Seat models) - no Audis/ Lamborghinis/Porsches/Ducatis though!
Unfortunately, I am a PhD researcher just finishing their thesis this summer so I would not believe that my financial situation will allow me to pay for both the retreat and living expenses.
Are the folks you attract mostly financially settled i.e. holding down real jobs?