Demolishers showing up is usually my queue to start a new game. They aren't a fun, entertaining, or rewarding enough experience for what they do. In my current game I'm on day 30, level 56, gamestage just hit 102, have a few T6 top tier pieces of equipment with tons of room for improvements. I'm still using melee for most everything except horde night. Game is plateauing, but still fun, once Demo's appear though it just gets tedious and I'll start a new game.