It's a myth with keywords in the domain name. You can use keyword subdomains and it worked just fine. My rule is that you should have at least one keyword in the URL. And the URL should not be longer than 15 words (incl. domain, subdomain, path)

Yes, I am very interested in this exact same question.

I find the keyword in the domain does help, but it really isn't worth chasing to the point of having a stupid name.. What you really want is an "exact phrase match"

I.e. "On sale laptops" gets searched for 19.9k times a month https://adwords.google.com/select/KeywordToolExternal

and position 1 is likely to get nearly 40% (if not more) of those clicks http://www.jaygeiger.com/index.php/2008/11/05/percentage-cli...

Thus if you can own OnSaleLaptops.com you stand to get around 10-30k hits/mo surely you can monetize that :/

hope these answers were ok, they are just my experience.