have you thought about adopting or rescuing one...depending on the area you live in...yorkie can run from as little as $250 to thousands...and since you are in florida i will say closer to thousands...hehe..
i have enclosed a link to petfinder.com with search results for yorkie or yorkie mix in or around your area...hope that helps
Yorkie, Fort McCoy, FL: Adoptable Pets: Petfinder