When The Force Awakens, I spent $99 on a toy version of BB8 that you could control from your iPhone. It was a cool toy. Then after a while the app was no longer supported... Sad times.
I also owned every iPhone from the first through iPhone 7 and kept each as I replaced the old one. After a while, none were usable due to changes in cellphone tech. And I realized keeping LiO batteries around was a huge fire hazard...