I spent a while doing the rounds of art fairs in London, and while some of the work is very good, some of it is banal.
One conceptual piece: a laser dot on a white wall. Another: a video of a house being floated down a river. Another: a collection of chrome door knobs.
I also saw the output of KPT FraxFlame (HN readers of a certain age will remember it) framed and being sold for four figures.
I asked the gallery owner if he knew what it was, and he said "Of course."
Galleries are essentially marketing machines for items and experiences that don't necessarily have intrinsic non-trivial aesthetic value of any kind.