Quite honestly because they are good dogs for people with allergies. I've had asthma since I was around 5 years old. Poodles were the only non-allergenic dogs you ever heard about when I was growing up. Since I live in an apartment, I was thinking toy/teacup poodle. My allergies are a lot better than when I was younger so when an opportunity presented itself where I could get a yorkie, I did some research.
It was meant to be.