We would all love to think our boats are worth more. Much more. Even more so as we love the brand, the history, the style, the hull design and yes, the Donzi name. But those that are not brand die-hards (i.e. most of the market) don't see them that way.
Greg's numbers are ballpark give or take regional differences and condition modifiers.
Around here, I regularly see 16's between $7 - 9,000 to as high as $15,000. I sold my '82 18 for $12,500 and was right on the money (although I've seen people asking "Muskoka" money for them too...). I have also watched a few 22s go between $20,000 and $24,000 over the past few years but that doesn't stop someone from listing their gold plated Donzi 22 at $35,000+.
Just be realistic. It is a nice, well kept 23 year old boat. In the market, I think it takes a wee hit due to the OMC no matter what the die-hards say. I'm sure you have a number in mind that your "happy" with... One you are "over the moon" thrilled to get and an "I'll take" number too. Balance those with your sales ability and your buyer and you're golden. If you're wrong (too high) it just takes longer to sell and you may need to adjust your thinking...too low and you'll have a line up to buy.... but, nobody's forcing you to sell.
Good luck!
Sean Conroy,
1964 Formula Jr. (hull #2) project
1972 Greavette Sunflash III
1981 Kavalk Mistral project
"A man can accomplish anything... as long as he doesn't care who gets the credit."