For $925 you could get an HP 4710s. 17" 1600x900 screen, 2.1GHz Core Duo, 3GB DDR, 320GB HD, ATI Mobility Radeon HD 4330, and MUCH more... This is actually usable windows hardware.
Windows tablets have been failing for years because you essential are paying for a mediocre touch experience coupled with a mediocre windows experience. Most people recognize, you are better off using windows as intended on HW that actually has the performance to run it.
While I agree with some of your points, particularly in the final paragraph, it doesn't really make sense to compare the Archos 9 tablet with a 17" laptop as you do above. This discussion is primarily about finding a suitable Tablet/Slate portable device in roughly the same weight and form-factor (at presumably a similar price point). But yes, I do agree that sadly you (presently) end up settling with a "mediocre" touch experience as well as Windows performance on the A9. I really wish Archos would have spent some time optimizing the OS or doing something to make the unit more tablet-friendly at the outset.
However, I think the point should still be made that there is still a market for this kind of hardware. What the A9 doesn't give you in terms of a great user experience out of the box, it does give you in complete freedom to tweak and optimize as you see fit and desire, plus gives you access to nearly all the software available to Windows 7 (netbook) users. I realize many users don't want to spend time "tinkering", but clearly there are some people who enjoy it, and have specialized needs that can only be met with this level of freedom.