Basic laws of supply and demand state that when you charge a fixed price and permit unlimited usage at that price, usage will approach infinity (that is, when t

Basic laws of supply and demand state that when you charge a fixed price and permit unlimited usage at that price, usage will approach infinity (that is, when the marginal price is zero). Everyone with a fixed price, unlimited usage plan has no incentive at all to restrain use. The wireless carriers cannot provide infinite service (the bandwidth simply doesn't exist).