I've been following the 3-400 mile rule as a guide for when to change out my shoes. Am I wasting my money changing them out this often? I do 50-60 mpw so they only last 45-60 days typically. The cost is typically around 100 bucks a pair so this isn't cheap for someone who isn't wealthy.
Could I get away with changing them less frequently? I do most of my running on asphalt and concrete.