This is not particularly interesting and I apologize for it, but I disagree with your definitional approach here. I think the "high end" is the "high end" irrespective of its relative cost to any individual. If I could by twelve Bentleys using pocket change, they'd still be high-end automobiles. I'd just be rich enough to treat the high end inconsequentially.
Which is why I sort of disagreed with the adoption of a "UG" definition of "high end", when this board started, of above (I think it was) $400 (maybe it was $500) an hour. That may be "high end" for UG, but it's not high end by real-world standards.
This, OTOH, I agree with completely. I think the real high end is invisible to most of us.