I don't really know....I have always loved them...their personalitites, their cuteness, etc.
I had only had ONE small dog since I have been married (a shih-tzu that we had to put to sleep, he was a rescue). I didn't want another small dog for a long time after that....but then I was looking around and thought...hmmm....Plus, at the time, I thought about having another child or fostering or something...DH told me to get a dog...

that was an open invitation...and I got MOJO!