"Why would anyone chose to stay in this sort of glamping style when they can easily go a little way down the beach and have the full comforts of a hotel or chalet they can rent?"
Here's why. Most folks like us know how much more relaxing it is to spend a vacation sans clothing, not having to dress and hop in a car after the beach. e.g. walk to the shower, rinse off the beach sand and lotion, settle down for a drink in front of the place, all while naked. The charm of Club Orient. Nothing like it. Loved it for 15 years. We'd go glamping for that, for sure. And some of those things are pretty fancy!