My understanding is that the 'high-end' equates to perhaps 1 or 2 percent of the adult population. Whereas general stereo/Best Buy would obviously equate to a substantially larger percentage.
But on the other hand, what would statistics such as this have to do with image over substance? And for who? Them or us?
Besides political and religious behavior will always more clearly demonstrate image v. substance.
These statistics (if anywhere near factual) probably more clearly demonstrate the priorities that people choose and which priorities in life people are willing to compromise so that others may florish.
Perhaps the high-end best demonstrates man's depravity for material possessions more than anything.
-IMO