That is a good price, but I would prefer to pay $20 for this:
Amazon.com: AC Infinity MULTIFAN S7, Quiet Dual 120mm USB Fan, UL-Certified for Receiver DVR Playstation Xbox Computer Cabinet Cooling: Electronics
www.amazon.com
My reason is the AC Infinity has a 3-speed switch, and I find leaving it on at low speed keeps anything I've got cool without audible noise from my LP.
As a general rule, a larger fan operating at a lower speed can move the same air with less noise, so the 120mm fan is typically a better size for most applications..
That said, what I don't know is if the Coolerguys fan might have some special blade profile or motor to keep noise down.