* I hate magsafe. I've owned a dozen of these and almost all of them have come apart just behind the magsafe connector. Expensive, proprietary, and fragile. I would much much rather have USB-C than shell out $90 every two years.
* USB-C is great. A bunch of different ports means carrying a bunch of different cables, so it doesn't matter what's on the computer-side. USB-C to microusb is no different than the USB-A to microusb. Actually it's better; the tiny dongles give you options without carrying a multitude of cables.
* The touchbar is meh. I would probably enjoy having dedicated Step In/Step Over/Step Out buttons when debugging, but I'm not willing to pay $300 for that.
The real problems with the new machines, which pushed me into buying a 2015 model, are:
* The new keyboard. The ergonomics are fine, but I am hard on keyboards and nevertheless expect 5+ years of duty (my last machine was bought new in 2013, and just wasn't cutting it with 8G of RAM). I can't have an unreliable and expensive keyboard.
* The price. A reasonably spec'd MBP is now pushing $3k. It's just too much! The specs of a modern maxed-out MBP are nearly identical to the 2015 model I just bought. Critically, I can't get more than 16G of RAM in a 13" form factor (and I'd really rather have something smaller). I bought a functionally equivalent machine and paid less than a third of what a new one costs.
I don't want a sexy svelte fragile expensive luxury status symbol. I want a rugged capital good that will reliably allow me to work for the next half-decade.