By definition, the no-contract carrier model is designed to save you money over the two-year contract agreement that reigns supreme here in the U.S.

The question is: How much do you really gain by going prepaid, and what do you lose from the subscriber experience? Without a doubt, no-contract carriers like MetroPCS, Virgin Mobile, Boost Mobile, and Cricket Wireless can dramatically cut your monthly cell phone bill, but there are trade-offs.