Originally Posted by
lancebanyon
There's also the fact that no two bottles of the same wine ever seem to taste exactly the same. I don't know how many times I will be bowled over by a bottle, go back and buy a lot more, then think, meh as soon as try it a second time.
I would say this is not at all fact but instead only anecdotal as the only real difference from bottle to bottle you should taste if age and setting (comment about glasses is right on the money) is when a particular bottle is bad. Terroir and the discerning of its characteristics relies heavily on similarity.