I didn't know if we wanted an RV, or would use it enough to make it worthwhile. That was five years ago. It's the BEST decision I ever made. I bought vintage, so I wouldn't have as much invested in case it didn't work out. It was a bit of work getting all the bugs worked out (not literally bugs, you know what I mean), but it's been a blast, and gotten a lot of use, and never missed a campout.
Plus there are Airstream rallys, both official and unofficial. Basically Airstreamers like to gather and party around the campfire all night. Shiney trailers by campfire-light. People sitting around singing and playing music. Morning rain pitter-pattering on the aluminum roof. Bacon on the grill. It's the greatest thing ever.