I've done this experiment with friends a few times. Personal experience. Almost anyone can tell really shitty wine from the rest, think your one or two bucks cardboard container wine. Almost nobody can tell a 10 euro bottle from a 100 euro bottle.
This also goes for other food and drinks. It's the same with coffee. You can taste really cheap and awful coffee, but if anyone can tell me they can reliably differentiate between decent beans and one of those fancy "it was fermented and digested by a monkey" specialty brands I'm scpetical.
This also goes for other food and drinks. It's the same with coffee. You can taste really cheap and awful coffee, but if anyone can tell me they can reliably differentiate between decent beans and one of those fancy "it was fermented and digested by a monkey" specialty brands I'm scpetical.