P/review Sites

There are tons of review sites telling you about the new products and tech toys coming to market. They all seem to cover the standard manufacturer specs, and sometimes look into the menu structure (OS) and other features. Even Amazon does it with their products.

I can't shake the feeling that there is something still fundamentally missing, something they aren't showing, that would be vital to my buying one via their sponsor links. But what is it?

In addition to the product reviews you read online, what would you need to know / see / read that would encourage you to buy one? Other than the spec data, what do you really want to know about a product that you can't seem to find in those sites?