Is it worth buying a base 15" 2017 at this point (16/256) for $2200? I know its just a month to WWDC but is there any significant upgrade expected in the base 15" model since it is already quad core with dGPU?
I understand its a different story for 13" & top tier 15" models....
I'd still not buy it now. Once new models come and the current ones are EOL'ed you might find really good discounts with some retailers! Or... Apple might lower the prices a tiny bit. Or you might actually LIKE the newer ones...
My general recommendation is almost ALWAYS to buy RIGHT WHEN Apple announces new machines. And then either get the new one... or a heavily discounted one elsewhere. You just have to act fast.
Little anecdote:
In Oct 2008 when the unibody MBPs were introduces I actually bought an EARLY 2008 (pre-unibody) model. This way I could get native DVI, and a matte screen that I wanted. Plus the other components where essentially the same. The GPU was only rebadged and slightly higher clocked.
It did not have a glass trackpad... but was ALREADY Multi-touch! The only non-unibody Pro... with multi-touch...
Back then Apple also had a 'good', 'better', 'best' approach. The base model cost €1800, mid-tier was like €2250 I believe.
I think... back then I got the 'old' mid-tier... for like €1800... which then was a significantly better deal than the new base line model.
I was working at an Apple retailer back then... and bought one right away... they had like 5-6 of said machines. Within 2 days... they were gone.