Another area is water sports. A zero-gravity "water-room" with some large "blobs" of water which you can throw at each other, or through which you can dive, will provide a lot of unique entertainment. But there will be a new safety problem to solve. Probably everyone will be required to wear a mouthpiece for an emergency air supply, because in zero-G you won't float to the "top" of a blob of water, of course. So if everyone has a few minutes' air-supply, that may avoid some panic attacks!
And once there are rotating hotels, true rotating swimming pools will get built, in which you can swim around the interior surface, and then dive out to float in the zero gravity in the center! Water's heavy, though - 1 ton/cubic meter - so quite a modest pool will contain 1000 tons of water - which will be a serious investment, even at only $100,000 / ton launch costs! So those facilities will be part of large orbital complexes.