Another wedding themed poll, hopefully a more interesting subject

Alec and my original plan was to buy enough booze so that people could have a couple of glasses of Pimms after the ceremonies and wine with dinner and then have a cash bar so that people can buy drinks during the dancing. We also want to get a wedding keg from the Milton brewery. I put Alec in charge of the booze because it's something which can be sorted out away from Cambridge and he knows more than booze about me. As some of you may know, Alec tends to be a bit generous in his estimates of how much people drink, mainly because he assumes that people will drink roughly the same amount as him even though he has the alcohol tolerance of a Russian bear.

So, currently we're budgeting to have roughly the equivalent per person of:
two glasses of Pimms
half a bottle of wine
one glass of 'champagne'*
and a pint of ale
there will also be soft drinks

Now, I'm starting to think that that might be enough booze and we don't need a cash bar. I don't want to run out and I don't know whether people will mind only having the choice of Pimms, wine or beer to drink.
[Poll #1188479]
*By which I mean sparkling white wine which is not from the champagne region.