Surprisingly, this is one of the value propositions of Costco!
Of course, the first thing they're known for is letting you buy comically huge volumes of everyday items.
But one of the reasons that they actually have a cult following is that their corporate buyers are actually incredibly good at finding interesting items and offering them at a good price.
Browsing Costco essentially becomes a curated tour of what's new in the land of food, gadgets, etc. All backed by an extremely consumer friendly set of policies allowing returns etc, which minimizes your risk.