Spica - 7:26 pm on Feb 10, 2004 (gmt 0)
As a user, I have never used the word "buy" when looking for a place to buy something on the internet. When I type in "blue widgets", I expect to find sites that sell blue widgets. Maybe it's just me, but I doubt it.
Note also that there are lots of site that do not have the word "buy" on their pages. So, how should I now tell Google that I want to buy rather than get information on a product? Should I type "blue widgets buy OR price OR $ OR purchase OR order"? Forget it! I'll use another search engine.