Sailboat asking and selling prices are all over the map. Some go for full price
after sitting on the market for a year or more, and some sell for 15 or 20% below asking in a month. Where there has been a long production run (the same or similar models have been built in large numbers for years) there will be a fairly consistant price line. Some sellers are misguided, and some listings are made at unrealistically high prices by Brokers who just want to get the listing, expecting the seller to get reasonable after time passes. Commissions are typically 6%, split between listing and selling brokers, who split that commission with the salesman. So salesmen are less interested in a few thousand dollars in the final price than they are in getting some income
at all. They can go months between deals.
But what matters more than the boats age is it's condition and additional equipment
: A large or new sail inventory can set the price tens of thousands or dollars higher, as can recent and extensive electronics
If you find a twenty year-old boat that has been rigorously kept up, with everything shiney and functional, you can pay more than it sold for new; much more!
A broker has access to the prices that many used boats sold for, but even that is a poor guide because you need to know how well equipped and maintained it was to make any sense of the deal.
In the end, if you take the time to familiarized yourself with boats in general and a few select models in particular, you will be able to judge what a boat is worth to you, and make an intelligent offer.
If that isn't clear enough, just remember; if a boat sells for more than 20% below the asking price, something was going on you may not want to deal with, like a truly adverse survey
Last point: Do not spend any money
you can't throw away on a boat without a survey
, and ask the surveyor
for an appraisal.