How long have your brakes lasted? We bought our QX used with 21k miles, so I doubt they were replaced before we got it. I just passed 81k miles. I asked the dealer to check them yesterday when I went in for an oil change and they said I should be good for another 10k or so. That's what it looked like to me, but I was shocked to hear that on a beast this size. I don't exactly drive like a grandma.