Two good deals on two great mice. The G9 has been discounted a lot lately because there is a new version out the G9x. To be honest I don't think it the updated version is worth the $50 extra over the regular G9. I don't use the G9 anymore but did for over a year and my only complaint was the cord started to curl up and was impossible to straighten out. Overall it was the best gaming mouse I've used and I've tried quite a few. I think the G9 is online only the MX Rev is in stores as well.
http://www.bestbuy.com/site/ol...d=8472324&type=product
http://www.bestbuy.com/site/ol...&cp=1&id=1153336299244
http://www.bestbuy.com/site/ol...d=8472324&type=product
http://www.bestbuy.com/site/ol...&cp=1&id=1153336299244