To be fair, when I bought my Apple Thunderbolt Display in 2012, I compared it to other monitors available at the time, and when you compared not just the display quality but the fact that it had an integrated Thunderbolt dock, it really wasn't too overpriced. (IIRC, Dell's closest equivalent was $949.)
The problem is that Apple almost never lowers their prices unless they come out with a "new improved" model of something. So, as a given product continues to be sold without an update or a price drop, the more steadily outrageous its price point seems. To the point of the original linked article, this is a serious problem for the Mac Pro. It was expensive at introduction, but it's been downright absurd for the last two years. This is an issue across most of the Mac product line currently, though.
The problem is that Apple almost never lowers their prices unless they come out with a "new improved" model of something. So, as a given product continues to be sold without an update or a price drop, the more steadily outrageous its price point seems. To the point of the original linked article, this is a serious problem for the Mac Pro. It was expensive at introduction, but it's been downright absurd for the last two years. This is an issue across most of the Mac product line currently, though.