CityVille and Leveling Up: What's the point?

Simply put, who knows. A large number of CityVille's players have reached the maximum level of 100 in Zynga's city-builder. What's worse is since Level 63, there has been nothing waiting for them but new titles. Energy doesn't even increase after Level 28 and Community Buildings have stopped coming in for the veterans since Level 60. CityVille forum user SirDadHellfire questions, "What is the purpose of leveling?"