Another thing to consider is your accessories. You may want to look at a few boats that a particular dealer rigged up and see if they did a good job. Check things like if they used stainless hardware, neatness of wiring, are electrical connections water proof, did they use back up plates under the deck/rail and so on. Graphs are the first thing that comes to mind that are incorrectly installed. There are dealers out there that sell quality products both in their boats and accessories, that are clueless how to put the two together. That is also a good indication that service after the sale will be less than desirable.