This is a way to interest people from buying used copies of their games, from which they gain no profit off, and still gain profit either way. So you cannot blame the developers in finding ways to create profit instead of locking part of the game that you later are charged buy as dlc but are given instead an activation code, or overpriced dlc.
If you like action and adventure will having plenty of stuff to do and shoot then yes. Though if you like a more tactical and rpg form go with fallout 1,2, and tactics.(Which are the better ones in the series.)