The paradox is that the monthly cost of a unit will quickly exceed the value of whatever is stored there unless the items have sentimental value or are very expensive. In TFA, their losses from theft was $500 and their insurance limit was $2,000. Within two years they would exceed that in rent payments on the unit. A Google search suggests the average storage unit tenancy is only 10 months. That's reasonable. Long-term storage only makes sense when the value exceeds what can reasonably be entrusted with the lax security of a storage facility.