Remove the cost from the question as that is relative to income/budget and motivation.

Consider that any modern racing cat will not take kindly to a landing like it was the big red one (1st infantry division) going all in on Omaha beach.

Consider that catsailing is far more diverse than using beaches as base or surf sailing (I would prefer a sailboard for beach/surf sailing. Perhaps even a kiteboard if I knew how to run those things)

What is left is a practical issue on how to deploy/retrieve the boat from a beach or any club with a ramp. Beachweels have been pointed to and I find that reasonable.

I believe foiling have enough momentum carry over into the short term and long term catsailing future. Interesting times and really exciting to watch what these guys are doing. In 5 to 10 years perhaps even I can afford to have a toy like this.