Without the subsidy, I can justify keeping my unlimited line, but not any of the tiered lines. I'm on a family plan with 550 shared minutes and separate data per line. If I port out all the lines except 1, is it possibly to go back to a 450 minute single line for $39.99 keeping my unlimited data? GoPhone apparently got more data today. $40 per month with 2 GB data and tethering.