Talking about bearings, i'm still on my set of bearings that came stock almost a year ago and only one broke just then
. And all that time they had to put up with the 3.5T and my abusive driving for about 12 hours a week, 3 weeks a month. Personally that's pretty awesome and I have my doubts that ceramic ones will give you any noticeable difference in performance. I just take my time, maintain them properly and they lasted ages.