What is the question about the review side of the market? If you're wondering if people do cater to it, there are many of us who do. On this particular site I only have about 100 reviews, but over 500 on another site. Depending on how you market it, it can be a very rewarding avenue to go, especially if you're angling for more Amazon and eBay sales.
You've just answered it, by confirming this aproach helps with sales. I'm a Newbie so pls be patient with me. The products yu Review are they attached to your blog/website? If so how do you get your sales?