We have been using a monster 8 burner event grill for the last 5 years. We too have 5 kids and they all want to bring a buddy and then family always shows up, and well you get the point.
This year we are down to two kids left at home and downsized to a Weber Q2200, and I sprang for the extra rolling stand for it as well. This thing is awesome. We used it on our 1st camping trip of the season this weekend. I havent been able to cook burgers this good in a long time. They are very well made too. Everything on them is either cast or stainless. There is nothing to rust out. I now have the basement in my camper back after I got rid of that big monsyer. Not sure I would want to take the base off of it though. Just get the rolling stand for itand it folds right down to the ground