I bought my first pair of Vibram KSOs about two years ago and wore them into the ground. This year I bought some new ones, so the first pair had been pushed down to yard work shoes. This weekend my wife and I are participating in the Warrior Dash in North Texas. Part of the race tradition is to toss in the shoes you wore during the race. Mine have definately seen better days.
Notice the patch near the toe and the sole is rubbed down on the big toe. These have been great shoes and seen me through some adventures, so they deserve a heroic warriors send off.