Mario, I believe you forgot the premium data fee for each of the first 2 lines. The EDF1500 was 129.99 + 20 for premium data. And he wanted the cost of the phones included too.
The total cost for 2 years of EDF1500 with 3 lines and 3 GS3's is $4,769.49. For a Framily of 3, the total 2 year cost with phone purchase is $4,739.97.