That's a good example too!

Right! KD is a good example too ^^

Wow, must be like the first time you agree with me

Well not all RPG's are that way. The Final Fantasy titles are extremely lineal and once you finish it, is over. Unlike other games like POkemon, Ultima, and Oblivion that had many paths and possible endings, making the replay value high, the Final fantasys and Dragon quests are more like reading a book with a beginning, one plot and one end.

I guess is a matter of taste.

I see what you are saying with Pokémon, I just use different terminology.  I kept playing after I beat the game.  I didn't go back and start over, which is what I thought you were originally saying.  On heavily story based RPGs, I'm with zexen_lowe, there is no reason to replay those.

pa que luego no digas que soy gacho =P

I personally don't have a preference. I enjoy playing both lengthy and short games. The only thing that really matters to me is if I have fun with the game. Although, right now with exams looming, I guess I'm leaning towards shorter gaming periods.

Right now, and probably for the next month, I'm going to be playing mostly Overkill when at home, replaying a level or two. On my way to school on the bus, I'm playing Platinum, which is a long game, but I put shorter gaming periods into it (~45 minutes each way).

Nunca dije que fueras gacho...sobre todo porque nunca escuché esa palabra en mi vida

For me it must be one of these three:

1. Short, but with online multiplayer (such as CoD: Modern Warfare, Halo 3, or Killzone 2)

2. Long, plus replayability (such as Fallout 3 or Oblivion)

3. Or games that are kind of "infinite" such as sports games or driving games that you don't necessarily beat but you just keep playing till your bored of it (such as NHL, Madden or Gran Turismo)

so to give you a definite answer, I'd prefer ones with online multiplayer, whether they're short or long campaigns.