Right now, I pay about $42 per month through Sprint. This plan includes unlimited texting. There's no data plan or Internet access.
I use my cell phone for voice about 200 minutes per month. I send about 400 texts per month.
Virgin Mobile has a Beyond Talk plan that offers 300 voice minutes per month and unlimited texts for $25 per month.
I like the $25 Virgin Beyond Talk plan a lot, especially the inclusion of the unlimited "Text, Email, Data & Web". I will switch to that plan when feasible .