It is doubtful that you're going to get more responses in one sub-forum over another. I suspect the reason that nobody answered the question is that there are few people who've owned their boat for 25 years after buying new.................and recall the purchase price.
In a 23' boat, either the original owner moved up in size/type or got out of boating.
Duplicate posts are discouraged. As a result, I've deleted the original post with no replies on it.