Welocome to YT!
I could go on and on all night, but here are the reasons that I choose a yorkie; they are a low shed breed, I love the long flowing coat but that you can also opt for the cute puppy cut. They are loyal and loving. There is alot of "dog" in a little package, I could watch their antics for hours. You can take them almost any where. They are a beautiful breed. I have a quiet home, and they tend like a fairly quiet lifestyle. I wanted a dog that would enjoy spending time with me and that was active but also like to curl up on a rainy day. I like dog clothes and they tend to get cold easy
I like to go on walks and hikes, not 5 mile runs they can keep up and do not drag me down the road... Like I said I can go on all night.
I have found that they are harder to potty train, can be stubborn, like to chase things, one of mine is a digger(but this is adorable IMO).
They are very fragile(especailly as puppies), I feel like I have to watch them alot and I take extra precautions to keep them safe. My smaller one especailly took more work and care. When they are sick I almost always go to the vet out of precaution.
Oh and they are addictive, you just may find yourself wanting another
I am sure that other yt'ers will think of alot more things that I forgot.