There is no ambiguity about which tablet people want. But, there is often a great gulf between what people want, and what they can afford. That gulf is where the non-iPad, tablet market lives. Amazon has a new plan to capture that market that should put fear into the other, Android tablet competitors.
There is a reason the iPad does not come with a keyboard, and it may not be the reason you think. You will never see an iPad advertised with a keyboard, either, even though there are very good keyboards made for it. Apple even sells them in their retail stores. For the exact opposite reasons, you will never see a Windows tablet advertised without a keyboard. I am not aware of any that come with a keyboard out of the box. But Microsoft, Nokia, and others build keyboards for the tablets they offer.