Let me get this straight:
If I have AppleCare+ it will cost me a total of 150$ to fix an iPhone the first time.
If I don't have AppleCare+, it'll cost me 200$ to fix an iPhone for the first time (or maybe I'll get lucky and not pay at all).
So... I'm paying 3/4 of the price in advance for something that I'll probably not need in the first place? I'd gladly pay the full amount if I broke my phone. Why pay upfront? If it was 50$, I'd do it, but paying almost the same amount for in advance makes no sense to me.
If you bought AppleCare+ at the time you bought the iPhone you will be paying $49 for each replacement due to user damage up to to 2 times. The $150 is if you don't have AppleCare+ and want to purchase AppleCare+ at the time the damage occurs. You would be getting a $50 credit because you would be buying the AppleCare+ later.