Following a new brand or company on social media is comparable to dating. Sometimes we've had a pleasant experience with the brand, and want to keep up with them after a great "first date". Other times we follow purely based on looks.
A cool logo? Well designed products? An awesome site? *Cough* Like this one *cough*. Folloooowwed.
So if looks and/or a nice first date are
why you follow, what makes you stay?
"I don't know. Money?"
What? No! A stellar personality.