Apparently at Tokyo Game Show, someone tried to ask Yoshiaki Kusuda, of Ni no Kuni / Professor Layton creators Level 5, just how long White Knight Chronicles is, which resulted in some discussion about how exactly an RPG's length ends up getting determined. Kusuda responded as follows:
"When we start developing an RPG we start from a story," Kusuda explained. "Then we divide the story into the parts where the player should play and the parts that would be just shown. Based on that, we create kind of a flow chart and then decide how many hours should be allocated to this part where players are supposed to be in the story, to make sure we keep a good balance."
White Knight Chronicles reportedly has an online quest system that results in the game being, well, as long as you want it to be. Sony producer Kentaro Motomura claimed to have played over 1,500 hours online and still not done everything.
Now, I prefer for my games to have an ending-- somewhere solid from which I can say "okay, I'm good" and move along. This is part of the reason why MMORPGs interest me so little. But how about you guys? How long a game are you willing to play? Have you ever played an RPG that was too long-- or too short?