Have you ever used a domain with a number, for a certain keyword? Let's say "pine" is the keyword Would pine10.com be a good domain for this keyword's optimization ?
nothin wrong with numbers... if it makes sense, go for it. example: 911 stories .com example: september 11 .com example: canada411 .ca (i think is a live website) example: happy 2007 .com etc. etc. good luck.
But in this case, stories, september and happy are not keywords that people will search for.. Just Canada can be one, but others I don't think so...
sometimes its a good thing to include a number in your domain specially if it is related to what your site is about.. i know a site that is optimized and has a PR6 with many links on it (IBLs), its a mobile (cellphone goodies) site