I think a lot of people who have destination weddings end up spending the days after their wedding w/ their friends and families similar to this. A couple of people I know did this and one liked it and the other hated it. I guess it kind of depends on how well you get along w/ the people you'll be with. The one who hated it was really sick of her friends by then and was afraid to ask for more alone time because their friends were getting really whiny about not hanging out "as a group." I'd also guess that if they're not married themselves, they won't understand the significance of this particular vacation for you. I mean, if they're thinking it'll be a "spring break" type partying vacation, I'd definitely advise you to spend the extra money and go on a honeymoon by yourselves. But if it's other couples who will respect your privacy and understand that you want your own room with lots of "private" time both in the hotel and around the area, then it might be a great way to save money.