In the future, most of those online games are going won't be played online anymore. That takes a lot away from their gameplay "value" in the future since their 6 hour campaigns won't be worth much.
However, in the case of an RPG like Persona 4, I've sunk in over 120 hours without completing my first playthrough. This game would remain "valuable" by itself without an online community or other external factor influencing it's enjoyability.
Thus, IMO, its much better to keep stuff like JRPGs for life (unlike burgrimmar seems to think) than multiplayer-focused FPS games. Hell, I even played vagant story a couple weeks ago and it was still an awesome game. I don't think I can say the same for COD4 in 9 years time because without its online offering, it won't feel complete.
"Dr. Tenma, according to you, lives are equal. That's why I live today. But you must have realised it by now...the only thing people are equal in is death"---Johann Liebert (MONSTER)
"WAR is a racket. It always has been.
It is possibly the oldest, easily the most profitable, surely the most vicious. It is the only one international in scope. It is the only one in which the profits are reckoned in dollars and the losses in lives"---Maj. Gen. Smedley Butler
