Cheap Windows 8 Product Key is Not Available
Under 99% conditions, Microsoft will not offer cheap Windows 8 product key for public. And the cheap Windows 8 product keys for sale on the market are not the key for Windows 8 genuine.
Try to think about it, why a company offers discount, coupon, cheap products to public? Because this company want to promote this product. Does Microsoft need this kind of marketing skill? Of course not. Windows systems has monopolized operating system marketing. There is no competitor facing him. So Microsoft don't need use cheap Windows 8 key to promote Windows8.
And the cheap keys of Windows 8 on the market are all pirate. Maybe they are genuine at the first sale, and this key is recorded by sellers, and sell it twice, or dozens of times. Then this key is used by many people at the same time. No difference with Windows 8 pirate.
And the only cheap Windows 8 product key I've ever heard that is Windows 8 for students. Some bad guys may buy Windows 8 student edition and sell them to public for earning more money. Because Windows is a must, and Windows 8 is a good product.
So, don't try to believe the websites on which sells cheap Windows 8 product keys.