If you're looking for yet another low-cost smartphone option, this one should pique your interest. Republic Wireless is getting the Moto G in April. The phone will cost $149, but remember that it's Republic's plans that really make things affordable, starting at $5 a month for voice data and texting over Wifi only.
If you decide you do need cellular service, another $5 a month gets you unlimited voice and texting. And $25 a month gets you unlimited everything, albeit on 3G data only.
Beyond that? Same great Moto G. Be sure to read our full Moto G review.