That all depends on what you want to do. If you just want to play through to see the general story, then FFX-2 would take anywhere from 40-80 hours to play. If you want to see everything that there is to see, you would have to replay the game several time, and depending on how many times you play you could easily spend a good 200 hours playing it. For FFX, if you just want to see the story, it will take you a good 60-80 hours to play it. If you want to do all the sidequests, it will probably take you about 110-130 hours, and if you have the International version, you can tack on another 20-40 hours of leveling up if you want to defeat Penance. So it all depends on what you want to do.