The neoclassical approximation of human behavior is contained in the assumptions of model of homo economicus. Work corresponds negatively to the question whether the neoclassical concept is obsolete. Criterion for overcome model it considers poor predictive ability of the model and its replacement by an alternative concept. The work is focused only on the adjustment of assumptions of the model involves shifting acting agent closer to reality and it does not deal with the rejection of the model based only on the evidence of real action that does not match the assumptions of the model. It deals with the theory of bounded rationality, the results of behavioral experiments and Becker extended utility function. The following it explains why subjects with ineffective behaviors survive in the market, and because of the lack of evolutionary pressure. I conclude that the model of homo economicus is not an outdated model, since it allows enlargement, leading to higher-quality predictions of human behavior.