I think the best value on high end wines lie with Italy. You can buy a 94 point Tuscany for t cheaper than you can buy a 91-92 point Super Cabs out of Napa. Bourdeauxs? Forgot it about it… Way to pricey and overvalued as a wine. It don’t mind though I am not keen on the taste charateristics on the Bourdeauxs anyway. Maybe I did not sample the right one but I spent a LOT of money on good ones while I was in Tahiti and was not impressed.
If you subscribe to wine spectator and several different wine sellers you can find great bargins on wine at the 25 dollar price point.