It's for extra storage or for a slide out cooktop with stove, fridge, etc.
Not an apt comparison. Old phones tend to turn into bricks. Batteries don’t last, and sometimes because newer operating system are not available on an old phone, you cannot access apps. An old phone you depend on isn’t worth the trouble many times.
Old EVs will have the same fate as old phones.
This truck in 5 years also could be a faded memory.
There is going to be a ton of competition out there and many with much more scale.
Like in the early days of the ICE car there will be many failures of some good and not so good EV vehicles.