32 GB of RAM is more than welcome for MainStage concerts, where a real sh*tload of RAM-hungry plugins all get loaded before a single note is played.
Apple needed to do this back in 2015. As we now see, it was just an engineering tradeoff. Sure, there's low power DDR4 RAM now, but it remained a simple engineering tradeoff.
I waited so long on my update cycle that I gave up on Apple and purchased a maxed out 2017 just 5 months ago. Will be looking for a way to get as much of that in resale and will definitely go for the new model (maxed out except for SSD, which I'll keep at 2TB).
The 2017 has been amazing. Literally *all* of this complaining about the ports are like kids complaining about training wheels coming off of their bikes. Seriously, these TB3 over USB-C combined ports are awesome. I run TWO TB3 docs, 2x 4x 60Hz displays. It's awesome, and most importantly, those ports, whether they're doing video, USB2/3/C and TB3 (all mixed at the same time), literally NEVER choke... They're that good, and for folks who connect stuff that needs bandwidth, all I can say is "wow"... It's not the worst thing on these designs, it's the best, by far.