Maximum Playing Time

[Stochastic]

That would be where the EV training, breeding, and collecting takes over for most of us. Pretty much those of us with more than that are the competitors and/or 100%-ers, with exceptions of people who continue to play just to play.

I see. This might sound odd, but I've never had a console to play Pokémon on, I've always played on emulators.
So naturally, after the game's ending, if there was no post-game, there would be nothing to do for me because
there was no one to fight anymore. It gains a whole new aspect when you can play against other people with
the team you trained yourself.

 

[Sheep]

Wooow, 999? :O My highest was somewhere around 300 in Sapphire, I believe.. many years ago when it had just come out. Don't think I've ever reached anywhere near 900 in any game much less Pokemon.

 

[Shrew]

I had 999:59 in Diamond, and I still wasn't done playing by then. Battle Tower, Underground, Poke Radar... I had a lot to keep me busy. The fact that this was sorta-kinda my first pokemon game and that I didn't get Platinum played into this.

 

[Astraea]

Mine highest was 733 in Pearl version.

 

[Brendino]

I've never even come close to the maximum play time in any of the games, but I'm sure if I were to combine my multiple playthroughs of both Sapphire and FireRed, I wouldn't doubt if they had 300+ hours each. I just don't know if I could find enough to occupy my time into playing 999 hours of the same game, but if there were to ever be a 3rd gen remake featuring the Emerald style Battle Frontier, that would be my best bet in getting there.