Amount needed

[Thomas]

I would be hip too had I not lost my hips to age... .

As for the wedding question, I look at it this way: get as good a wine as you can (about half bottle per person) and if there is any left over, either let the wedding couple have it or let the dad who pays for the wedding have it.

As for sparkling wine: in my opinion, it is better to have none than to serve that cheap stuff with bubbles the size of cannon balls, and since most caterers haven't a clue what a true champagne glass is, it is also a good idea to discuss that with your caterer too, especially if you want to serve good sparkling wine. And with sparkling good can mean a fine Cava from Spain or a domestic of some pedigree.