How much are you paying overall for alcohol/bartender(s)?

We are supplying our own wine to the bartender and they are supplying the beer and soft drinks. For 90 people (we asked for 75, but they quoted us 90 for some reason), it's $1,400 including gratuity, glasses, disposable cups for beer, the beer, the soft drinks, set up, tear down, ice to chill everything, and 2 bartenders. That seems unreasonably high to me. Is this normal? What are you guys paying? Oh, I should add that this is for 3 hours.