MacBook != MBP. The keyboards are different, hence the different experiences.
The MacBook 2017 has a 2nd gen butterfly keyboard, which debuted as the 2016 MacBook Pro's keyboard. They may be somewhat different, but they are based on the same mechanism, which is why I mentioned my 2017 MacBook.
Like I said, if it was behaving as that one did, I would get it serviced. I also happen to know other MacBook Pro users who don't have that problem.
It's quite possible that the sticking happens more than it should, but that doesn't mean it's functioning normally for that model.
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You keep moving goalposts all over the place.
You said the Air was "low quality" as a product (it's not).
When you were talking about Dell and being low quality you weren't talking about specs like the screen, but literally the quality of the products (fit/finish/reliabilty/build quality), were you not?
That's a totally different discussion vs specific specs of a given model.
Aside from that, nothing about "non-retina" = "the Air" by necessity.
It was just a device birthed in the pre-retina era, but one could certainly be upgraded to retina and still called the Air (if Apple wanted)
I said the Air has a mediocre screen, which makes it a low... OK... mediocre... quality product. And I also said if you put a Retina screen in it, it's no longer an Air. And they already have a 13" model that fits the bill, which is the non-TB MBP. The non-TB MBP actually has a smaller footprint than the Air too, and is the same weight.
For the Dells, I was talking about the fact that they have way too many SKUs that just confuse the shopping process, and make the whole experience frustrating. You pick a machine that may have the features and design you want, only to discover you can't buy it with an SSD.
The Air isn't quite as bad, but the CPUs are 2 years old, meaning the new codec (HEVC) Apple is building its ecosystem around isn't supported in hardware, and you can't spec one with a Retina screen. It also has no USB-C support.
I think the writing is on the wall. Perhaps we shall see on Tuesday, but either way I suspect Apple will kill off the Air sooner rather than later. Maybe Apple will come up with an entirely new 13" product on Tuesday, but maybe not.