If I was getting a new computer then maybe. Although I'm interested in 10" tablets (and buying a separate keyboard) more now with newer and better devices. This is of course, when I need a new computer. Currently I have a netbook running XP. That's all I need so I don't need anything too powerful.
Yes I have my phone, but sometimes it's easier to do things on a computer (even at some websites) and a keyboard makes typing for me much faster and more accurate.
ETA: if I wanted a big, powerful desktop to do other things with, then it might not be too bad to have it run Android. If it could. And sync to my phone. For example, if I'm playing Angry Birds, then my score is there on my computer so I just pick up where I left off from my phone (after syncing of course).