We only give away small, low traffic sites for free.
We give them away, because having lots of small sites will get us noticed by bigger, paying customers. Eventually, some people will pay us to use more than what we offer for free.
Also, I've been trying to promote SMX, my web building language of choice.
We might, some day, reduce the number of features given to new free users. But we won't change the features or start charging existing users.