Welcome to YT
I understand how it feels to really want a yorkie, but however much a yorkie baby costs, it is
cheap compared to the cost of looking after it for the rest of it's life. People have already mentioned vets bills (which can run to thousands if, god forbid, your little one is really sick) and good quality food, there are also grooming costs (a neccessity with yorkies), toys, and clothing (if you want to dress your little one), the list goes on and on.
Why not take a year or two to save, giving you a chance to thoroughly research the yorkie breed (you've joined the best site for it!
) so that when the time comes to gt your baby you are fully prepared.
I wish you lots of luck
xxx