[oh_sigh]

Except the switching cost is essentially 0: just type Bing or Yahoo into the address bar

[AlphaSite]

Switching cost for the searcher, not the websites. They have zero recourse.

[oh_sigh]

I'm not sure what you mean...put googlebot in your robots.txt then?

[rtkwe]

Except if you don't exist on Google you don't exist at all for ~75% of searchers. That's what I'm thinking the person was saying.

[AlphaSite]

yes.