1. A method of reducing a total cost of ownership for a wireless telecommunications core network, the method comprising: determining, by a computer system, an optimal core wireless network evolution plan for a network planning period; determining, by the computer system, an optimal core wireless network equipment count for supporting a first amount of wireless network traffic; and determining, by the computer system, an optimal core wireless network configuration for supporting the first amount of wireless network traffic, wherein the total cost of ownership includes capital expenditures, operational cost, customer acquisition and retention (CAR) cost, and staffing and engineering cost, and wherein the CAR cost is based on unsupported traffic and inter-system handovers.