I've sold many strippers through the years, as well as given some as gifts and donating some to non-profits.
It generally takes much longer to sell a home built, since the masses are leery of a builders' skills and too many folks believe that a wood boat is fragile.
As mentioned above, a builder with a known reputation can sell their boats at a premium. Unknown builders can get their materials cost back, plus a little more if they're lucky.
A few photos of the boats in action, so to speak, will spark more interest than a photo of the boat on the lawn. Also, some brief explanation of the virtues of a stripper in the ad copy helps draw more attention. Definitely draw comparisons to production boats WRT weight and cost.
And lastly, there are many non-profits that will eagerly raffle or auction off your boats and provide you with the proper certification so that you can claim a tax deduction. Depending on your income level and other deductions, this could be extremely beneficial to your bottom line. I have personally been able to deduct $3,000 from my income, on more than one occasion...again, depending on your situation, this may be as good or better than a cash sale.
On a final note, just like Jim, I build boats to satisfy my own needs and whims. BUT, I prefer to have my hobbies be self supporting, even more so, generate a profit. A little patience, some creative thinking and a bit of luck will get you there!