>I had a storage unit for a while until I realized that the monthly bill was more than the value of the contents.

For every one of you there's a few people using it as business storage and dozens of people who are dealing with living situation stuff (college housing vs apartment, house closing timing, job relocation, house renovation, etc, etc, etc) that trade in and out of units on like a 1-2mo timeline.

Source: Almost bought one.