>a lot of the running/training type shoes wear out in 3-4 months, the sole is shot This isn't about price but weight. Because of new materials tech, we've gott

>a lot of the running/training type shoes wear out in 3-4 months, the sole is shot This isn't about price but weight. Because of new materials tech, we've gotten used to super light shoes (and they definitely help in terms of performance) but the cost of that is durability. Typically in materials science weight and durability have an inverse relationship. There are exceptions, but you're not finding those in department store sneakers.