For me the main reason is that games are the exact same with better graphics.I already spent hundreds of hours in one game getting better, unlocking shit, learning the maps. Why would I want to start from scratch for another game that is the exact same gameplay.
Nowadays I will only get into a game if it’s something I have never played before, and Pokemon games that I know what I am doing already and I just do. But starting a new shooter, new adventure game, rpg, etc, its just the same in green for me.