LOL. I guess it depends on what you are looking for. The owner of the Durable Medical Supply store suggested I look there when I was looking for portable aluminum wheelchair ramps for my front door to make it easier to get my mom in her wheel chair into the house. Durable Medical Supply store wanted $500 for them, all covered in ADA compliance stickers, warning labels, and that sand paper like anti-slip strips.
Harbor Freight, same ramps, same manufacturer, designed as "cargo" ramps, no ADA compliance stickers, no warning labels, $189.
I suspect if I had accident with them that could be linked to the design or manufacture of the product, the ADA compliant ones would put the company on the hook for liability in a lawsuit. The cargo ramps, since I wasn't using them for the purpose they were "sold" for, probably no liability for the maker in a lawsuit. So a portion of the higher price may pay for product liability insurance.