So we are doing our ceremony and reception at the same site (it is a casino property). Tentatively our ceremony is at 5:30, with dinner at 7:00pm. We have no children attending the wedding, and because of this, our initial thought is not to have a cocktail hour because we figure with only an hour between, guests could either go back to their rooms briefly or enjoy the casino if that's their thing. Is it absolutely necessary to host a cocktail hour? Budget is a factor for us but I've been reading many boards and some members say it is totally rude to NOT have a hosted cocktail hour. Thoughts??