Free, complimentary or no extra charge, it is all about choices. How about "included", like with Hertz and the insurance or flying 1st class with "free" drinks? People can choose to pay the price for food and comfort in exchange for the loungers or they can go elsewhere.

Personally, while I usually like the beach area at Bikini, I find the prices they charge to be among the highest on Orient for loungers/umbrellas and their food is not at all inexpensive either.