Sure there is. I'm an extra line on my parents' family plan, using a $30 prepaid phone from BB on a month-to-month agreement that costs me 10 bucks for unlimited nights, weekends, and texting. I don't talk enough to worry about daytime minutes. Best of both worlds. If I smash the thing, who cares, it cost 30 bucks.
That said, that's not what I was biting my tongue about.