900 hours is excessive, there is no question about it, especially if one were career oriented. I am glad somebody brought it up, because I am myself worried about what is happening with me. I have a tad more than 90 hours and I still don't have my private. It is because I have a FT job that requires a lot of dedication and time. Although I fly at least 2 times a week it is not always possible for me to stay sharp. Sometimes I feel like just quitting my job and doing it full time. But at this state of the economy, that is not practical. I hope to get my instrument rating in a significantly less time. I also have quite a commute to the flight school. All these factors have lead for me taking so long to get my license. I have however, gained a lot of experience by the additional hours. I have become more exposed to winds, weather, making decisions etc. So I'd say it all depends on your personal situation and how you make the best out of it.