A product being on a shelf at a Walmart is a better indicator of quality then anything you could post on an Amazon listing.

Funny, it's the opposite to me.

A product on the shelf, I don't have the slightest idea if it'll break in a month or have a feature that doesn't work right.

When I start browsing Amazon reviews, I feel vastly more confident I know what I'm buying.

Only exception is clothing, since it's next to impossible to judge fit and texture and often even color online.