Well, I'm harldy boating any more. I used to put well over 100 hours per year, even 200 hours per year, on my boats. This last year I've been out 4 times total.
Why? Because I can literally fly to New York or Honolulu round trip for less than driving my boat to Catalina and back -- a LOT less. It just isn't worth the money now. $350 per hour flat out, that's a lot of coin, and I can't even think of what else I can do and spend money that quickly.
And when prices double again within a couple of years and that trip to Catalina costs a grand... Way, way fewer people are going to do it.
Running a thousand horsepower is just not going to be possible for anyone but zillionairs. If you've already got a private jet, then sure, keep driving your twin big blocks.
How about for the rest of us who don't have so many oil wells? The toys are simply going to look a lot different. Nobody buys fancy phaeton horse buggys any more, and no one will buy boats that take many hundreds or thousands of horsepower. Its just over.
However. We had a lot of fun using a skim board instead of skis, doing 6-8 knots instead of 30-40. A huge difference in fuel flow, and perhaps its more fun.
The boats are just going to be very, very different. Those who don't change, will die.