Francisco Fiko
Son
I know quite a few agree with this, but for me and many others the answer is simpler: the music. I LOVE salsa music (particularly the dura kind), whereas most other latin music styles are way less appealing (well, apart from cha), so what dance I chose gives itself. I see no reason to dance if I don't enjoy the music. I also tend to think a love of the music helps ensure the longevity of one's dance hobby.
Fair enough. But what are the chances that your musical taste was influenced by the people you learned from or socially dance with?