Agreed, that you've lost your mind. And, I'm betting that this will not be your last mistress.
Boats are like women, but a bit more flexible. Every bit expensive and every time you change them, it costs a lot. However, the boat really doesn't mind if your try out another boat.
So, there's a thought in being pretty sure that this boat will be your last.... makes it easier. And that's hard to do for a first big one. Takes a lot of research, looking at and trying them out.
Also, there's an argument to get a first boat with the intention of stepping up. So the first one would be a lot of fun, easy to buy, operate and sell. A popular one that most everyone wants. If you get the wrong one, they can be hard to get rid of, besides expensive.
Food for thought.....