We are having a destination wedding for 200 people. We are supportng the local businesses by using all Michigan product, vendors, etc. Since Michigan has local beer, wine and vodka that is what we willl be serving at the reception. The reception will be 6.5 hours. The caterer is telling us that we only need 3 cases of wine and two pony kegs. I had an extensive conversation with with her about why and her experience. I gut feeling is not buying her reasoning- mostly because all the drink calculators I can find tell me we need quite a bit more. (Around 11 cases of wine and 6 pony kegs) What is everyone else's experience? I suppose the added speciality drink with vodka might bring these numbers down a bit but the difference is still quite staggering. Please advise.