The only difference for me this year might be fewer power boats out on the lake, which would be an improvement.
I our case it should mean less powerboats and PWC in the marina. The lake is big enough and often scary enough that power boats aren't much of a thing once you get far enough out.
Even before the recent fuel increase and inflation, the 25ft+ powerboats went out for an hour or two, while the keelboats would be out all day, if not all weekend. I suspect many of the powerboats may become dock cottages. Already see the "for sale" ads being posted. Sadly I suspect many of them may be COVID boats that were only purchased in the last few years.
Marina fees are reasonable and have barely increased.
72 miles each way, to the marina, so fuel to drive up there would, in theory, be more than any boat fuel. But we now have a EV so that won't be a factor at all except for when we use the truck to haul stuff up there.
In fact, our "new" bigger boat will lower potential fuel costs because we won't be trailering it like the C22.
There are two gentlemen who share a keelboat at our marina. They use it both together and individually, and are apparently good friends. Not sure of the details of their agreement but it seems to work.
I suspect that inflation and fuel/transport costs will decrease engine based recreational activities and even boat and vacation home values. Who knows, maybe you will see increased rental demand.
Overall inflation will be the biggest factor, especially when you consider that Europe has had high fuel costs for ages and North America has had it good so nothing to complain about. (Or course the fuel contributes to the overall cost of everything)