I like the update, though I'm a little surprised they didn't slim down the bezels - not that I care too much, I've never had a problem with them. The display is still utterly gorgeous.
I'm considering selling my current one which I bought in July last year during the education sale. I paid £1,600 for it, but I could probably get rid of it pretty quickly on eBay for £1,300 given it's in mint condition with charger, box etc. And then just pay the difference out of pocket for the new one with the better CPU/GPU, keyboard, physical escape key and T-shape arrows. That's worth £300 for me.
Yeah it's not really about the raw numbers at this point. The difference between, say, a 7th gen and a 10th gen i5 will still be enormous.