Read on if you'd like to know...
In Brief...
Further Information...
Here's an example:
This week, a Bestvalue 17" TFT flat panel display may be manufactured by Manufacturer A. However, in a month's time, as pricing and exchange rates fluctuate, the best possible deal we can source on a 17" TFT flat panel may be manufactured by Manufacturer B. The exact specification would change, though the product would continue to be sold as a Bestvalue 17" TFT and represent excellent value for money. Please bear this in mind. If you're looking for a specific item with a static specification, then you should probably consider purchasing a branded item.