I've run 21 marathons in shoes from various manufacturers (Brooks, ASICS, Under Armor, New Balance, etc.) and I've owned lots of great shoes (I've run a thousand miles in pairs of ASICS GT-2000s) but the Ghost 13s I ran in were the best in shock absorption, the most comfortable and definitely the most durable. While most shoes are worn out in 300 miles, I ran 400 miles in the Ghost 13s and I've walked an additional 120 miles in them. The soles are hardly worn and they still have that squishy…