since literally EVERYONE seems to be going for the "plus" model (I like it too, but it seems like a behemoth, so I'm really conflicted and will get the 4.7 to start and then see...) if THAT'S what you are after, then ya, 1200 SHARP.
I expect we'll start hearing about "supply constraints" for the 5.5 model any time now. Because it almost had zero leaks, methinks it was "fully baked" much later in the process, and there is more demand, with less OF them to pre-order.
The 5 sold out in a matter of about 30 minutes (for release day).
My prediction:
4.7: 12 Hours
5.5: 30 Minutes
For launch day delivery of course.