If doesn't make a difference after 24 months. In dec 2013. ATT was already offering those on mobile share who became off contract $15 off each month per line.
http://arstechnica.com/business/2013/12/att-gives-15-per-month-discounts-to-off-contract-customers/
I'm not comparing those two plans, I'm comparing the National 700 with rollover family plan to the new Shared data value plan at 10GB or higher.
I'm happy that they're finally moving away from the subsidized model.
I switched:
- my wife from Verizon who was spending $80 a month
- myself from the 450 minute plan with texting and 2GB of data for $70
- my parents and grandmother who had 3 lines for $120 (2 iPhones and a dumbphone, none of which get upgraded regularly)
I had a 25% FAN discount on my plan, which now applies to my $100 data charge. I have 5 lines at $15 each. Overall we went from spending $270 a month to $150. It was a pretty simple decision for us.
----------
So 4 lines in the new mobile share is about the break even point.
For 3 lines the new plan is $90 less every 2 years($5400 for the family plan vs $5310 for the shared data value plan). It'll be even more if you don't HAVE TO upgrade every 2 years.