Originally Posted by
DrIsotope
I don't rotate, because I get 2x the life out of a front compared to a rear. I get right about 3,000 miles out of my Maxxis in the rear. By that point, the front is just starting to flatten out in the center of the carcass. If I were to switch it to the rear, it would be dead within 1,000 miles, while the brand new front would have a good 5,000 left in it (give or take.) The vicious cycle of rotating would go on forever. So I replace one rear at ~3k, then both tires at ~6k. While it might work out the same in the end, I feel like replacement + rotation would just have me constantly buying new tires, and having to keep a detailed log telling me when to move what tire where.
That's why you should rotate, because the front lasts longer. You want a fresh front as much of the time as possible. It is so much simpler than you are making it. Rotating as described here automatically gets the most wear out of your tires. No thinking about it needed. When the rear is worn out, it is time to move the front to the rear and buy a new front. No mileage concerns needed.