Well, I didn't mean to imply that the higher priced wine wasn't better, but that rather you are almost always paying mostly for something other than quality. Incrementally, as you pay more, less and less of that increase is in terms of actual qualitative improvements. For example, you might get the hypothetical 95 point wine for $50, but to get the other 5 points you end up spending several hundred more. Sure, you're buying and getting something more (a particular flavor profile, a label that influences your perception positively, etc), but what you clearly are not getting is a good QPR.
A perfect example is a bunch of friends who did a blind comparison of '01 d'Yquem and the top cuvee of an '01 Loupiac (Loupiac is across the river from Sauternes/Barsac). The d'Yquem WAS better. Of course, the d'Yquem cost several hundred dollars and the Loupiac was about $40.
The $100 "QPR" that is relative to a $500 peer is mostly something that I think we rationalize, because I think in many cases you're still paying alot over the $20, $30, or even $50 stepsister. Obviously this is perception-driven so your mileage may vary. And, of course, all bets are off if your goal is flipping rather than drinking.
