Goodness, where to begin....
I'm sort of the opposite position from Mike. We owned a 2003 CD22 and sold her in May 2008. Warranty issues were never an issue, Period. Les (EQ Marine) had the boat ready for a white-glove inspection in June 2003 and in 650+ hours (five years) we never even came close to a "warranty issue." Lucky Us.
Eighteen months later I had regained my senses, and was ready to buy another boat. I looked at a variety of boats (both new and used), but frankly the quality of the "warranty" wasn't one of my requirements. Much more important to me was the VESSEL itself, my inspection, and appearance of use and care by the previous owner. Sure, a warranty would have been nice, but would you trade it for what you SEE?
Frankly, my impression is that a warranty mainly benefits the first purchaser. Several warranty's don't even transfer to subsequent owners even though there has been no corporate changes! Moreover, virtually every state has its own warranty legislation, so what you get in ________ (fill-in your State) may not be exactly what you were expecting. No, I prefer to proceed on the basis of what I SEE. If I was buying a new vessel with no warranty I'd probably want to use that as leverage in the final negotiation - but in a used vessel, other factors are more compelling.
After much though and inspection of several used C-Dory-like vessels I decided on a Cape Cruiser 23 (aka: Venture in C-Dory parlance...). And given the whole Cape Cruiser vs. C-Dory Story the existence of a warranty wasn't even a consideration. Hell, nobody loves Cape Cruisers ... except the Owners (many of whom I consulted).
A hull warranty wasn't even a consideration. Could I regret this decision; maybe. I'll just have to live with it. Example: I recently had the dealer do a bottom-job. (If the boat had a warranty I may have opted to just have bottompaint. As it was, I decided to go to the extra expense of a barrier coat (extra protection against blisters, etc.) In any case, without a warranty, the deal was strictly between me an my dealer.
The whole aspect of warranty-related business practices makes me dizzy. Sure, current owners who have lost any potential advantage in a warranty are offended (and likely pissed). On the other hand, warranty's are largely backward looking promises, and when a business goes under, so do their warranty's for the most part. Should corporate buyers assume that responsibility to maintain brand-loyalty? Probably Not. If a new corporate buyer goes under, the issue of what they did regarding a previous owner's warranty claims probably wasn't the reason.
Interesting thread ... I look forward to reading more.
Best,
Casey