I think we will have to agree to disagree.
Again, you are making the same recommendations I make for the right audience. To me, the average user prefers convenience and simplicity. People who like to tinker, understand parts selections, and certainly not getting ripped off for repair service costs on older equipment.
Yes, you know that you can find un-used off the shelf parts. But service places will get the cheapest parts possible and upsell the repair cost. That cheap part might be a new old stock component, or it could ripped straight out of a used business PC that ran 24/7 for 7 years. I work with these things all the time, I understand the failure rates. And a good percentage of business PCs pop within the first 12 months, so quality isn't exactly abundant there either (Always the 12V rail...)
And I am not talking about CPUs or memory. But power supplies, hard drives, and fans. Parts with a limited operational lifespan. A new computer will have new ones, that 'should' last. If they don't, hopefully the warranty covers it. If not, you would have the exact same cost if the machine is old or new on most commonly replaced components. Excepting that with an old business model with proprietary equipment you don't have much choice but to get those parts, regardless of availability, age, or cost. But something like that Acer can buy practically whatever you want and shove it in there.