MajorFubar
macrumors 68020
No the question usually comes along the lines of "will a [stupidly over-specified MBP or MBA] be good enough for [insert really simple menial task here, like watching TY]" and I try to respectfully point out that the [insert really simple menial task here, like watching YT] can in fact be carried out by a computer for a quarter of the cost. And that's when I get told to fluff off, even though I'm actually just trying to save the questioner some money because their requirements are so rudimentary any computer made in the last 10+ years can probably do it.I'll make it simple for you: because they can. Nobody has to justify themselves to you or anyone else.
It's like asking why someone needs to buy an expensive car when a cheaper one will get them from point A to point B just as easily.
I happy bought a maxed out M2 air and will be buying a Mac Pro when they're announced to replace my maxed out 2013 Mac Pro.
Your financial questions sound like a personal problem.
I respect that it's actually no business of mine if they buy a fully loaded Mac Pro in order to just run Mine Sweeper on a Windows partition.