For many years I watched the bloatware that totally ruined the user experience, especially at the turn of the century.
Can Microsoft make quality hardware to compliment their software and in turn make their software feel "better" to the many of those who have turned away from it? They have the capital to figure it out.
The only "huge negative impact" that I can see from this is pushing the hardware manufacturers to innovate harder and do better with the use and distribution of the software. It is going to thin the herd for sure. I think this is necessary for Microsoft to gain some control over the user experience.
Yes, resellers and hardware manufacturers helped make Microsoft the huge corporation it is today, but the time has come. I think Microsoft only has to gain from this--if they do the hardware right.