You’re right. I got my current (smallish) car with the explanation that I could just rent a truck when I want to haul hobby materials, but the practical inconvenience of that rental has meant that I just don’t, and consequently haven’t done any big hobby projects in years. When I imagine renting an EV booster battery, I imagine it being easy, convenient, and reasonably priced, unlike literally everything else in the automotive market.

And there is different emotional content in using your own vehicle vs any alternative.