My take on what a quilting retreat is - a quiet place with the focus being on quilting, crafting, etc. and not on whether there are a lot of other activities outside the building. Of course, having food provided is also a necessity for me. That is why I would go on a quilting retreat - to quilt with other quilters and not have to go out for eating, entertainment, etc. and not having to think about "what's to eat" and that is what I would expect to be paying for. Good luck on your venture whatever way it goes.