I am not a wine connoisseur. I enjoy the odd glass of wine with dinner or with friends. Usually red (shiraz, pinot noir) but sometimes pinot grigio or chardonnay.
I'm curious what people expect from an expensive bottle of wine. I usually buy bottles of wine in the $10-$15 range and they taste good to me. What would someone expect to be the difference with a $40-$50 bottle?