Oh, powerboats require huge maintenance. I had a 32 foot power catamaran and while it was still new, had the steering rod come apart while we were in rough waters. Shut the engines down, crawled inside that bay with hot engine an inch from my nose and a wave comes over and dumps a ton of sea water on the engine. I get soaked and am dying of steam on my face. Get out and use the two engines for steering. Make it back to our mooring, go in there and notice a tiny little set screw had come loose, causing the hydraulic rams to no longer turn the engines left and right. A tiny bit of nail polish took care of it coming loose.Yes, beaur. Maintenance is indeed often overlooked. Just keeping the brightwork looking good on this boat is a lot of work. Same with analog. Cartridge rebuilds, cleaning records, replacing belts, cleaning styli, all the adjustments previously mentioned, etc.
I spent 90% of my time maintaining the thing than using it and so eventually sold it. I lost $30,000 per year for that period even though I did vast majority of the work myself!
What is the old saying? Best days of boat ownership is the day you buy it, and the day you sell it!
We downsized to a much smaller fishing boat and the darn thing still requires more maintenance than we use it.