Around 35,000km to 45,000km seems to be the norm with the TRD's. Just because they wear down this quick doesn't necessarily translate to aggressive driving. SupaTouring and SecaBoy both had TRD's which had their rotors wear at the typical rate for these cars and I wouldn't say that their cars were treated badly. Remember, a lot of city driving can easily accelerate the wear as well since there is a lot of start stop. So those first 14,000km your TRD went through may not have been as harsh as you may think. In addition to that, I feel the pads on these 'drag' quite a bit more than what I would call normal. Just go driving slowly next to a wall or something and you can hear the pads dragging on the rotors a little.