I think to understand the point I'm trying to make, we could re-examine your previous statement: "Am I foolish and not obeying the laws of economics for buying

I think to understand the point I'm trying to make, we could re-examine your previous statement: "Am I foolish and not obeying the laws of economics for buying video games, which have an expected payoff of $0?" If the laws of economics predict that you shouldn't buy that video game, then you're not foolish -- they are. People's behavior changes radically when you give them experimental situations that involve gaining or losing money -- they're way more risk averse with losing 100$ then they are with changing their odds of winning 100$. This isn't baked into the assumptions that economics makes, and neither are a million other wrinkles of human behavior. "What economists say" isn't the be-all and end-all, it's just another prism to be used.