There are lots of products in the market that we don't need and may never have a need to even find out about them. However, it is always good to be able to know where you can find them if you have a need for them.
Take for example, heavy duty drawer slides. Most of us may never have a need know about these unless one is a carpenter or a home renovator or in a line related to home cabinetry and home improvement.
Heavy duty anything is a safe bet for efficiency and durability. Imagine having to stress out over a cabinet that's always dislodging itself whenever you yank it out a little too hard.