The $450 phone was $0 upfront, and the $550 phone was $100 upfront, but they all cost the same per month after that.   Scrounging up $200 for a flagship $650 phone is tough for some people, even if they can pay the monthly cell phone bill.<p>Now, with financing, all the phones are $0 upfront. The $450 one is $19 per month, the $550 one is $23, and the $650 one is $27.  So I&#x27;d wager they sell more of those flagships to people.