Long and short of it. Our friends and fam have a tendency to have a few to many during the traditional catholic wedding gap, don't eat the apps and and before you know it everyone is feeling mighty happy during dinner.
Our reception is starting at 6 and since the timing works that we will actually be there for all of it (not using that time for photos) we are considering having just a 1/2 hr of open bar with no apps with a receiving line (basically "Hi fabulous to have, grab a drink and we'll get started soon" type of thing) and start dinner at 6:30.
I should say that the plan is a second round of food (late night drinking food) will be served around 10:30-11. This has become VERY popular with our friends and fam - they are the types to close out weddings and bars so late night munchies go over very well. But we can't afford to basically have 2 cocktail hours, and the late night munchies is what we want as guests normally and is more of our personality.