also
$450 provides you with EXCELLENT customer support - not palm you off with excuses and expect you to pay $50 to send a damaged item back to them.
Ability to purchase device when YOU WANT in any store locally to you
No hoops or stupid publicity stunt or social media spamming.
No yellow tinted screen - blamed on your eyesight or you not understanding their fantastic backlight technology (developed in urinals the world over).
YOU GET WHAT YOU PAY FOR ..... as someone who spent months on OPO's forum, I'd rather have all those hours of my life back and pay the extra......
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Also lets not forget the VAST MAJORITY of iPhone 6 & 6+ buyers will be buying on contact at $199 & $299 whereas the OnePlus One is not available subsidised because no carrier would touch it with a barge pole ........