I think it would be a great ideal to get both. I have 2 yorkies, Maddie 19 months, Rudy 9 months and Lucky a chow-mix that is 15 years old and is the reason why I have 2 yorkies.
She got depressed whey I had to put my 17 year yorkie to sleep. She won't even go outside without them. Only draw back on having more then one is the Vet cost, not that yorkies are unhealthy, just the cost of shots, heartworm meds and ect. My three are worth every penny...............Cindy