I couldn't get the links in Katzennahrung's post to work, but I know the feeling. The most expensive resin kit I've heard of is the Andrea 1/35 WWII U-boat. I think it sells for something like $3,000. Must be nice to have that kind of money to spend on a hobby - especially on a kit that wouldn't actually take very long to build.
A few years ago Model Shipways issued a resin-hull version of its New York pilot boat Phantom, on 1/96 scale. The kit had been on the market for about thirty years, originally with a solid wood hull. The resin version kept all the original britannia metal castings, wood spars, and all the other wood components of the original version; the only thing that changed was the hull. I bought one and built it. (Here's a link to some photos: http://gallery.drydockmodels.com/phantom ) I like it. I thought the hull casting could have been better (the moldmaker missed the distinctive "step" at the base of the bulwarks, and I couldn't figure out why the planking seams were visible on the deck but not on the exterior of the hull), but with some work (including a layer of styrene "planks" on the exterior) I'm pretty happy with the result. I certainly thought the basic concept was worth pursuing. Apparently I was unusual in that regard. The manufacturer took the resin-hulled version of the kit off the market, and is now selling it again with a wood hull.
I believe a company called Cottage Industries has just released a Morris-class revenue cutter with a resin hull and other parts. And Bluejacket ( www.bluejacketinc.com ) makes a couple of small sailing vessels in resin. I'd like to see other manufacturers try this idea. Resin is a versatile material for such things as hulls and fittings. It does have its limitations. (The thought of a sailing ship model with resin masts and yards is laughable.) But I agree that it has a good deal of potential for the sailing ship modeler. I guess the problem is that the market is so small. The few manufacturers who are interested in sailing ships at all probably are reluctant to take risks.
Youth, talent, hard work, and enthusiasm are no match for old age and treachery.