Laundrymom, I run my program VERY similiar to you. My families are all a part of MY family, vacations, camping, etc. just like you. My kids have also always been a huge part of my program and have spent many nights and trips away with our DC families and now babysit for them as well.
I love the extended family that I have and will always cherish the memories we have all built as a community over the years.