I bought a MacBook for £850. My daughter bought a Toshiba laptop for about half the price. My MacBook is going strong after more than four years. You can see the age, and the battery is gone, but it works just fine. On the Toshiba first the charger connector broke, then the battery, then keys dropped off the keyboard, then the motherboard was gone and that was it, all within less than two years. If you don't calculate dollars or pounds per computer, but dollars or pounds per year of computer use, Macs are doing absolutely fine.
And that is before you consider that all the time I had a much, much nicer computing experience.
All this anecdotal stuff is silly.
I bought my daughter a dell laptop 6 years ago for half the price of a mac laptop at that time and it still works fine for her.
I have two PCs that I built to my own specs 7 years ago and 5 years ago and they still run fine.
I paid a fraction of what a comparable mac would have cost, but there were no comparable macs because apple dictates the hardware that is used in a mac and I built the PCs to the specs I wanted rather than what apple decided.
In terms of money per years of use, they are far better values than macs.
Over the years, I have built at least a dozen PCs for myself and friends and they all ran fine. Most of them were finally put out to pasture when their specs became too dated to run the newer software.
I have a PC at work that I built in 1995 with a Pentium 75 cpu, a 750MB hard drive, a 2X CD reader and a 4MB graphics card that still runs Windows 98, but all of the new software has rendered it obsolete- yet it still works and runs the software on it fine.
The fact is that most macs or PCs will run fine for many years and the only reason to change them is that the software outpaces the specs of the computers.
The truth is that macs are overpriced. The fanboys will buy them and put up with being overcharged.
Macs are ok, but they tend to offer dated components and limited range of components compared to what you can get in a PC.
A homebuilt PC is a much more cost effective purchase than any mac, and it gives you total control over the specs.