Eh, I just saw the story of some gamer that did lv99 on Cloud and Berret on original FF7 without leaving the first area.
It seemed like it took him 2 years and 500 hours to accomplish it.
Well, what really is intriguing to me, aside how he manage to spend 500h doing extremelly boring *** (though, despite being boring it would be easily to multitask it with like anything) is how could he spend 2 years to play 500h. I mean, this isnt even 1h per day, that below casual.