Entertainment is not a waste. Arguably playing a game like chess probably has mental benefits over other forms, so it could be argued that people choosing this

Entertainment is not a waste. Arguably playing a game like chess probably has mental benefits over other forms, so it could be argued that people choosing this form of entertainment over another is an optimization in and off itself. Some people have days of time driving 4x4s, or sitting on the beach, or reading a book. Do you consider all of that time "wasted" also? (hint, it isn't, for that person)