Very misleading headline ignores PC sales trends as a whole.
As we see here, computer sales are on a downward trend as a whole across the entire industry. Everyone is at their lowest sales level in years. Not just Apple. Dell, HP, everyone.
That's because before 2010-2011, the only good way to use the Internet was to have a computer.
The first iPad was released on April 3, 2010, notice how computer sales started going down after 2011. I think that's due to a combination of factors: the iPad, Android tablets and the fact that post-2010, computers didn't get as fast as before, negating the need to upgrade.
As an example, my main computer is still a mid-2010 Mac mini (2.4GHz Core 2 Duo) and after upgrading the RAM to 16GB and replacing the HDD with a small 128GB SSD, it still does what I need it to do. Granted it's getting slow because of the bloated javascript librairies people use everywhere these days but other than that it works just fine.
If I wanted to upgrade to a newer Mac mini, I would have no choice but to pick the 2.6GHz Dual-Core i5 to have any SSD option. With 16GB (same as I have) and a 256GB SSD (twice of what I have) I'd have to pay 1329$CAD. That's an insane price to ask for a dual-core computer in 2018. At that price I'd expect a
minimum of quad-core, maybe 32GB RAM and at least a 512GB SSD. And don't bother comparing that to MacBook prices because those need a keyboard, battery, charger and display.