Well, our camping is quite balanced.  We enjoy the company and the peace.  On seperate occasions, we've had her parents, my SIL her husband and kid, my BIL and wife, the kids each had a friend go with us, we also have a couple that we vacation with many times a year go with us and their daughter.  We've also gone with just our 4.  I've even just gone with my son.(left the girls at home)  Each trip has been fine.  Sick kids happen.  Sick adults happen too!  There's no difference in the cleanup whether it is home, hotel, or the TT.  Whenever we take someone with us though, we make sure they know what to bring.  As far as the itinerary, well the women ussually do that planning anyway.  My job is to get the TT to the campsite the night before everyone else, set it up and then tear down after the trip is over, then bring it home.  When our vacation friends come along, he usually comes with me and the dogs.  That works for us!!