Is $30/month about the best I can hope for for a unlimited talk/text + little bit of data?

[clay]

I am considering a switch to a different phone/carrier, and am currently investigating options. It would seem as though $30/month is about the lowest price for service that includes unlimited talk/text and a little data.

I'm probably most interested in sticking with either an ATT or Verizon MVNO, as T-mobile doesn't have great coverage in my area.

What do you folks think?