Stop for a second to consider one of the biggest differences between a Macbook Pro and Macbook Air and you may see the light. That is, connectivity. Originally I bought my first Pro simply because I needed to be able to hook up multiple devices to my computer in different locations and being limited to one USB (in the original macbook air) caused problems on a daily basis. The new Air with two USBs and one thunderbolt was slightly better, but considering the ethernet dongle took one of those (unless I used the tb->ethernet) it wasn't such a big improvement.
I've come to appreciate the more powerful processor, the excellent Retina display and the 16GB of memory. I'd love more but that's not happening. At work I've got a TB hub because I'm too lazy to carry things around too much. I hate dongles with a passion. They're always in the wrong place, they get lost and they clutter up my bag - and make life difficult when you need different setups. That's one reason why I've got both the USB and TB versions of the ethernet dongle. I run constantly into situations where I need one or the other to keep enough ports available for other systems.
Those who get excited at this point and start whining about using WIFI might want to get a life and then remember some of us work with networks. I'm not going to start dragging an Airport Express around with me just to be able to connect to different networks.
It'd be easier if I worked in a single location - or even two. I don't. I move from one customer to another and I do need to be able to prepare for different situations and carry all the crap with me at all times so dongles - thanks but no thanks. Only 4 USB-C? Thanks, but that's pretty much half of what I'd like to see even if I was willing to accept using a horde of dongles to hook up whatever analyzers etc I need at different times. I already have to live with the ethernet dongles,the usb-to-rs232 dongles and whatever else to be able to configure different devices. And no, I'm not proposing they'd put rs232 back in Macbook Pro even though it would make my life easier. I'm just not ready to quadruple my amount of dongles just to be able to work.
Even less so if it's got the shallow keyboard. I've no use for it. Still, I believe it's there only when I see the announcement. So at least for a while longer I can dream about buying a new Macbook Pro. I'm still pretty sure the current one will be my last Mac. Too bad.