Why? Because of two things: you do not need to re-learn a UI (the same way people would play mods in W3, CS, etc.) and because it is hard/there is friction in s

Why? Because of two things: you do not need to re-learn a UI (the same way people would play mods in W3, CS, etc.) and because it is hard/there is friction in starting a new game. Think about it, why do you spend hours thinking about what movie you're going to watch on Netflix just to re-watch a movie you've already watched? It's easier for your brain.