Apple’s genius was in marketing to a segment of the population willing to pay more in order to feel like they’re “cool” and/or somehow unique.
You hit it on the head. He built a market for those willing to pay big bucks for something that was not very upgradable if at all, limited in software packages, but it looked cool. They rode the “but it has better graphics” pony long after bigger, better horses came along.
I had one, briefly. I rarely had to crack open the (very thin) instruction manual. Then, I got an IBM at work & bought a compatible for home. Soon, I had a shelf of books filled with arcane scribbles. I spent hundreds of hours learning DOS, and the “command line” codes for programs. IOW, I was doing the really mindless, repetitious work that the computer should have been doing. That time could have been used in more productive ways — more than making up for the additional cost of a Mac.
Also, the graphics capabilities were important to me — for such business graphics as PERT charts, CPM charts, and graphs, etc. It was either time consuming and complicated, or impossible to do these graphics with a DOS machine. Windows closed the gap — but, for at least 10 years I cursed DOS. (And, I was the “go to guy” in the office for any computer problems — most of my co-workers did not have the stoicism to suffer through the learning curves.)