We are August and also having a buffet - OH is plumping for a cold finger buffet, I am pushing for a hot carvery style buffet. I can see your point about wanting hot food when we are praying for a hot day - I usually plump for a sandwich for tea when it's hot. Haha.
We are having a buffet as we have 150 guests and to serve a 3 course meal to them would have taken 3-4 hours - well, we get married 3-4pm, then photos, and expected arrival at venue is 6pm. 4 hours takes me to 10pm and then we only get 2 hours to party?! It just wasn't going to work for us!
I don't feel stingy (now) as if we go for the cold buffet we will provide an afternoon tea on arrival (our fave cakes, little sandwiches, scones, teacakes, tea, coffee, OJ etc)