Who would come to training workshops not boring with recreation and hotel included

I would attend if I had that kind of money. Definitely sounds worth the money. I think you should offer the standard room to for those that need to save some $ or bring along family.

First you said $750, now $99/night. I'm confused.

And yes, one of the reasons I'm learning drupal is to earn more money.

The more expensive it is, the more focused it needs to be, both in terms of audience and content. If you are targeting professionals that work for companies with reasonably deep pockets, they will probably want to do it during the week. If you go for experienced hackers who want to move into Drupal, it should probably be longer.

Good luck

Israel, people that have the money will pay. In particular me, I don't have much money. But should you put together a curricular that sounds worth my hard earned money I would pay. That $ amount and value is different for every person. Even between two equally skilled devs making the same $ at the same company. That's just life.

If your offering to put something together than go ahead, but be prepared for answers like "I can't afford that" or I want this. Only you know what is covers your cost and is worth your time.

Some people might expect free training and a free hotel, but it doesn't mean you have to accommodate them. So in short, post a rough outline of your curriculum and the cost that you feel comfortable would cover it. Worry about value adding later, after the important parts been settled. We can arrange for food, drinks, and surfing on our own, but we can't train ourselves.

Hopefully that makes sense...

Another thought, you could stagger the training. Day1 basics, Day2 intermediate, and day 3 advanced. And give people the option to attend 1,2, or all 3 days.