I just finished my beer for a wedding of 200 people! I made 15 gallons of an American lager, we called it "Miller Like" since the groom's last name is Miller, and another 15 gallons of an IPA. I actually did four 10 gallon brews for a total of 40 gallons, but the groom was kind enough to let me skim a 5 gallon keg of each type since he was paying for it all. People there loved both beers! Thanks to my wife for making the labels (she's a graphic designer).