Welcome to the forum. The easy way to find the answer is to go to Yachtworld.com and plug
in the boat(s) you are looking at and compare those prices to a similar new model.
Keep in mind a new boat won't be a maintenance
free boat, and being new won't guarantee a trouble free purchase
experience. Also remember unlike a passenger car or house, most boats under 10 years old have limited wear and tear. Most have auxiliary engines with under 1000 hours, and show a high pride of ownership
Keep reading this forum, you'll find lots of suggestions and many points of view. Suggest you type in a specific brand of boat your interested in, in the "search" field and see what others have said.
Also go to Sailboatowners.com and read reviews
by ACTUAL owners, many times these are better than posts from "a-guy-who-knew-a-guy-who-had-a-friend-with-one"
Good luck with your dreams