You could still Preorder for in-store pickup on launch day, and this week you can still do the same. This wasn't the case last year, or with the 15 pro, or even 14 pro if I recall correctly.
Maybe supply got better, but I don't see many in the wild, and availability is far from scarce.
I know it has compromises, but people do not appreciate the air for its uniqueness. Literally everyone years ago used one camera and was happy. However, people are less content with phones now than they used to be.
The battery is not a compromise at all when you consider it has nearly identical battery life to the 16 Plus and 16 Pro.
I have put a SIM back into my iPhone 7 (not Plus) to test out for a week.
For the most part 1 camera is okay, but I often miss the ultra wide, but still rarely use the zoom but it is nice to have. I am sure the olioclip could resolve some of that (I have one lost in a drawer someplace) so for situations like that the air could be decent. I REALLY miss having this size of phone, and since I charge daily with device of this size anyway, it still has reasonable day life in my use case.
My issue with the Air is the massive forhead that could potentially make the device less than ideal to slip in or out of a pocket. Due to cables and other security at the store I have not actually tried to pocket one, but it is hard to ignore the change in thickness. Running my OG iPhone 7 without a case, zero issues, in fact, the curve to the frame around the camera makes it quite slippery to slip in and out of a pocket.
Does the Pro have the same problem. Sure, but it isn't being sold as the "thinnest iphone ever" so the difference in thickness more excusable IMO.