I think it is very important as a pianist to have a well-rounded life. I myself practice around 6-8 hours a day. But take note that I am teaching piano full time at home now and preparing auditions to go to conservatories. In stark contrast, when I was in school or working, I could put in at most 3 hours of concentrated practice every day, and that is already pushing my physical and mental limit to the max, which needless to say, was not very healthy. I see no point in comparing the amount of practice hours from person to person, because each person is simply different. I truly believe that as a pianist, our mental and spiritual health is simply important. I am close to my friends, family, and active in church. I watch nice programmes on TVs, plays computer games, does running seriously, attend concerts and recitals, go out to have chat and meals with friends and families, etc, and does ministries in church. Sure, people like SteinwayGuy may think all these are waste of time and hence I am 'not dedicated enough' and my 'standard' is not as high as him'. But I'm sure in the future I will be a much happier person instead of a grumply and socially challenged person which ironically many musicians are ( not all though, I met some nice and friendly musicians too, although I met more eccentric and obssessed ones ). Sure, I may not be able to play Rach 2 now, but who the hell cares?