I purchased a pair of Adidas Superstars around June 2019 for a mere $20 and have been wearing them continuously for almost 18 months, almost daily since COVID hit hard. The shoes have been beaten up and lost all of its cushioning in the soles, but otherwise are still functional and chugging along. A tear formed on the outer side of the left shoe and was likely due to me being too harsh when trying to clean the shoes one day, otherwise it should have remained intact. With the exception of the tear and the lack of cushioning (the soles likely collapsed over time) the shoes are still wearable and I use them daily at least 5-6 days a week with an average 6-10 miles of walking on surfaces with mostly dry conditions and only an occasional wet pavement or puddle. Over 3000 miles! By my estimates I've worn them for about 3,096 miles (18 months * 4.3 weeks * 5 days = 387 days * 8 miles = 3,096 miles) and its likely due to mostly flat and smooth surfaces like concrete, tile, wood and carpet