Fuck what?
Sprint's bill is not much cheaper than everyone else's anymore.
Unlimited Min $109.99
450 Min $79.99
900 Min $99.99
Then add on taxes. Unlimited data sure, but the 3G network ain't that consistent, and 4G LTE is too early to be worth it yet. Unless you are on an old, grandfathered plan, its just a small monthly price difference.
I pay $104 after taxes for 900 mins, unlimited text, and unlimited 4G on Verizon after my job discount. $120 after taxes with no discount.
If you really wanna save money, you're best off going prepaid with a MNVO like Virgin Mobile, Straight Talk or Simple Mobile and paying $40-50 a month.