Most people buy a new phone when they're getting a new plan or renewing their old one, and don't want to delay that process for weeks. As for "Let alone if it'

Most people buy a new phone when they're getting a new plan or renewing their old one, and don't want to delay that process for weeks. As for "Let alone if it's the iPhone that they want" Apple is the most recognizable brand and thus a higher portion of it's users are likely to be uninformed and persuadable.