It's a good one, but worth also making a collection of alt model numbers. Costco, for example, gets custom models just for it's stores, as does Best Buy in the US. Often the products are the same except for a color, though some include extras either in the box (a sleeve!) or in the product.
Yeah, once you start searching on a model, you often can find details about what that model actually is, and the various forms it appears (manuals, especially repair manuals, can be tremendous for this).
