If you look at a basic search engine and want to find results for a certain line of products you won't find it listed very well. You may be able to find a single product, or a slew of stores that offer similar products, but they aren't really designed to search for the best shopping results. Plus they are loaded with hidden ads inside them that make the results a bit skewed and not in your best interest.
Not only that, but you can't find listings for every category there is and general "hot products" listed either under the categories you want with the best deals. Sporting Goods could encompass things that have no business being in the sporting goods and outdoor searches. Places like Become.com go out of their way to make sure that if you search for airsoft vests you aren't going to find a
trailer hitch cargo carrier listed among them. You will actually find a page of listings for the triax bike you searched and the best price for it rather than a bunch of ads for companies trying to poach a website visit for something that may be similar, but not what you want. Become.com t is not a problem. It is about the easiest way to search for products of ANY sort on the web.