How to buy a used shipping container<br>Decide how long you need to use the container. If you plan to use it for storage for a few months, you may want to consider renting a container. With this option, you will not be required to dispose of it or sell it when you are finished.
The longer you keep a container the less likely you are to get rid of it. 
Context makes it clear that using a container for a short duration favors renting. Meaning the inverse is true if you plan on using it a long time you are not less likely to dispose of it. 