So with all that in mind, which wines are fine and QPR for you?
Well, from Ridge for example, the Three Valleys is often every bit as good as the more expensive bottlings. Their estate Cab is also a pretty good value.
Qupe Central Coast Syrah has to be in there - outclasses many wines costing a lot more.
I tend to drink a lot of Spanish wine so many wines from Rioja - CVNE Imperal GR will last your lifetime and put to shame many wines costing several times as much. As will the Contino Olivos and from places like Bodegas Riojanas, the Monte Real - it's really an underrated wine. The 1981 is stunningly good right now.
From Ribera del Duero in Burgos, you have places like Cillar de Silos, Valderiz, J.A. Calvo Casajus and Condado de Haza, all of which turn out wines that outperform their contemporaries in their respective price ranges at 10, 15, 20 years.
Cru Beaujolais is usually a great QPR depending on producer - Brun and Chermette are 2 reliable ones.
Produttori del Barbaresco, from their basic Barbaresco to their single-vineyard bottlings can hold their own with Barbaresco and Barolo costing much more.
Guigal's Brune et Blonde is really good in some vintages. A few St. Josephs - the region gets less respect than other N. Rhone areas. Crozes Hermitage can be a good value.
Château Maris Continuite de Nature from Minervois is currently one of my favorite Carignans from anywhere. Hard to find some of them but a lot of the wines from places like Minervois, Roussillon, etc. A lot of crap but some great stuff.
For sweets and fortifieds that's also the place to look. Rivesaltes from the early 1900s are actually affordable. Sherries too.