A real-life example - on last fall's RV trip, my RVing bud was staying here at our place for a couple of months - I have a full hook-up RV spot, and he was parked there, and house-sitting for us as well as enjoying the Salmon fishing in the Sacramento river. We both have mobile ham setups in our trailers and trucks - and maintained DAILY contact as we traveled from our California home to N. Carolina for 6 weeks, then on to Florida for 5 weeks. I was able to keep up with what the "gang" was up to back home, and keep track of any problems around the place. Sure, I could do that with a cell phone too, but there are no time limits or roaming charges on ham radio - and it works EVERYWHERE - not just where a cell relay tower happens to be!
I have friends who have been former neighbors, but now live in distant places - yet we are still able to keep regular contact with them 10 miles or a thousand miles, makes no dofference, usually we can keep in regular touch. Ham radio is FAR more reliable for travelers/RVers who want to coordinate travel over longer distances, again, if my RV bud is up in Washington state as we are leaving with our RV to meet in Oregon, we can easily meet on the air and coordinate our travel - something you can't do with CB - and frequently not even cell phones. I've been doing this stuff for 45 years now - wouldn't trade it for any other hobby - or "service" as Ham radio is more accurately referred to by officials who recognize the value of contact Hams provide when various disasters render other communications useless...