For what it's worth: people with those kinds of issues are rare. Not rare enough, of course, but it's not as if everybody has them. In a way, chamakits's problems demonstrate why Microsoft is still selling them: even if they show serious issues, the rest of the tablet is so good that people will still love it.

As an aside, my own Surface displayed a very minor issue with the pen tap location being off by about a millimeter at the top edge of the screen when I first got it. Windows Update fixed it right away. It hasn't shown any issues since then, at all. From what I hear from people I know that also own one, this is more typical than situations with serious problems.