These are my Mizuno Enerzy. They are only a few years old, but they survived my 110kg to 75kg, 5km in 50 mins to 10km in 55 mins fitness journey. Its getting a bit embarrasing at the gym when people see the duct tape. Ive already stitched the holes up three times.
How long are running shoes supposed to last you? They are expensive! Are they expected to do this, or should they last much longer?
I get 5-800 km of of my shoes, I'm generally pretty hard on heels, with a heel strike and a short left leg. I only run, and I do it close to 90km a week, so rotation, and discount shoes are the way.