jules, I use AirTags in both my luggage (checked) and my backpack. I have had my luggage take detours 5 or 6 times in recent years.
While not necessarily always useful for retrieving it, my AirTag has been invaluable in knowing what I was dealing with. Once it sat in Dallas for a week after a really short transfer in Madrid meant it didn’t make the flight with me. But I knew the suitcase was in Dallas, and where it was, so I could keep calling the right people. I knew it wasn’t sitting in Madrid.
Once it didn’t make it on my flight to Gdansk and when it was delivered, the delivery guy couldn’t call me (since I had no Polish telephone number) nor could he find the door to my apartment. Having the AirTag meant I could watch its progress through Gdansk toward me and meet him on the street.
Once it didn’t make it to Tirana with me. I left Tirana for 2 nights before it could catch up and although the hotel said they would accept it and hold for me, they refused it. I watched it spend the weekend sitting in front of an apartment building. I could see it never moved. On Monday I was back and the courier, who had been holding it for further directions, delivered it right to me - again, I could watch progress toward me.
I could be an advertisement for carryon, as opposed to air tags. But I used to check for the sake of making connections (flying from a small airport) and now I always seem to have something (like hiking poles or my specific contact solution) that needs to be checked.
An AirTag doesn’t weigh much and gives me peace of mind.
I have one in my backpack because I am afraid of putting it down and forgetting it. I had never thought in terms of it being stolen. While I don’t have any trip-killers in it, I do have things that I would far rather not lose. jfigie100, thank you for the story.