By the way I buy them the California Natural Lamb and Rice.  It is all Cosmo will eat..he is so picky!  I also buy the glucosime peanut butter treats which are almost impossible to find.  Any suggestions on the best online ordering?
 
You are right, even as a first time owner to Yorkies I cannot go back there and have any piece of mind.  I feel in a way kind of "stuck up" but my two little men are average weight and I was almost bambuzzled into purchasing a 1.9 lb yorkie for $2,500.00 when I was first looking.  Thanks to this site I educated myself first before buying. 
By the way my 11 month old is 5.9 lbs and my chunkie little 4 mo old is 3.1 lbs 

   My youngest JJ (Jumpin' Jaxon) is not picky!