Wine: Go big with a magnum for your next party

I attended an exceptional Champagne tasting on Nov. 1, which was part of the programming of La Grande Dégustation de Montréal. It was the largest tasting of high-end Champagne outside of France, as 27 of the top houses got together to pour their top cuvées and rare wines. More than 200 Champagne enthusiasts attended to benefit Fondation Montréal.
While my list of recommendable wines (if you could even get them) would be too large to fit in this column, what I noticed