BFG seems like a completionist. The impression I get is that if he feels he has not completed a game, it leaves him with an unsatisfied feeling.
I play games all the time that I do not complete. I often don't complete them because I eventually lose interest. It's generally a slow tapering off, not a going over a waterfall kinda thing. Do I consider this a bad thing, or somehow indicative of a shortcoming of said game? No, not at all.
Fallout 3 was one of the most immersive, satisfying gaming experiences I've had to date, yet I never did complete the main story - I'm honestly not sure how far along I was. I decided not to use any fast traveling though, and I think that actually enhanced the experience quite a bit (I was forced to become quite familiar with the map layout).
I'm curious what BFG's opinions are on game expansions, DLC, and games that just add content after release (which become core parts of the game, not like expansions or DLC add-ons). BFG, do you enjoy revisiting games that have DLC, or expansions? Those would both add content to a game that you may have felt you've already completed.
I just don't understand why MORE of a good thing is a bad thing.