Re: Considering buying a 1992 Sea Ray Sundancer 230 LTD
I think you'll find out that a boat is not quite like a car when it comes to being used. Boats tend to be abused much more readily than used cars, and you can get yourself into a HUGE hole real fast with a used boat.
To get a really good opinion from this board, you'd be better off posting pictures, telling us about the previous owner, and asking the previous owner all the used-boat questions (how was it stored, was he a DIY guy or was it maintained by a mechanic, what's the compression on the engine, etc). The most important stuff when asking for an opinion is for the board to know what kind of engine and drive the boat has in it. Next is hull condition (not the seats - the fiberglass, floor, stringers, transom - structural stuff).
There's a few things that are consistent from one hull to the next, but not too many to worry about. Spend LOTS of time inspecting the engine, drive, controls and wiring. If those are hosed up they add up very quickly.