Because they are buying cheaply made, cookie-cutter phones packaged into shiny aluminum bodies made en masse at Foxconn, often with severe disregard for safety. There are endless issues with iPhones(screens, wifi, battery, cameras, etc), but in USA they at least will replace it withouth hassle. (And often "refurbish" it and sell it in "less important markes"). Possibly that's why outside few countries iPhones are nearly non-existent. They simply do not stand up to competition, given mid-range features, extreme price and obstructionism to replacing defective units). Apple and Beats by Dr. Dre fit very nicely.