Spurred by the launch of PCS service, for the last few years the wireless industry has gone through its own version of the demographic transition. This is a concept used by geographers to generalize social changes created by industrial development. In a pre-transition society, birth rates are high to make up for high infant mortality and adult death rates. The population is stable at a relatively low level. As health care and overall living conditions improve, the death rate falls sharply.
More children survive to adulthood, and population skyrockets.
It takes a while for cultural mores and values to adjust to this new reality and the birth rate to come back into alignment with mortality. After the transition, the population is more or less stable again, but at a much higher level. The changes wrought by new PCS carriers drastically lowered entry barriers and resulted in millions of new customers who would never have bought wireless under the old regime. However, this can't last forever. Sooner or later, the industry will have managed to scoop up all the customers willing to make a purchase under the current market conditions.