Agreed, but, an exception for me, the buyer of my Columbia Challenger said she was the best of it's type (amongst many) on SF Bay, and paid me $1000 more than I paid. Luckily, I had bought it mint from the Commodore of the Chevron oil fleet, including new North sails. The sad part is several years later I was walking the docks in Sausalito, and there she sat looking a wreck.

Just as in buying houses, I need to do my own looking to get the specs I want + I enjoy the process. I'm sure brokers are helpful for people short on time. I didn't need a surveyor for the above Columbia, but one may not have a choice if an insurer demands a survey. Importantly, liveaboard marinas in SF area demand insurance.

Happy shopping!