What a neat way to get the family involved. Buy a "big" Airstream and then run away for an extended and extremely pleasurable trip. They realize now that the only way to see you on a regular basis is to have a similar trailer, with a truck that can get them to where ever it is you happen to be for the day, and back again in reasonable time.
Actually, now, if this were me, I'd be thinking that "someone"
thinks that eventually I'll not be up to hauling that big ol trailer of mine around and will want to trade for a smaller one, and guess who just happens to have one and have the TV to accommodate a larger trailer
It's nice to see that the family thinks your Airstream acquisition was obviously a wise one.