No alternative to this fan

I already have a Noctua p12 in my system as Tower Vent for my Meghalems sitting on a Icore 7 2600K. The Noctua for 2 years doing there already its silent service and keeps the CPU at full load (prime) is always below 60 ° C.
As recently one of the chassis fan (Silenx) has failed, I've re-ordered a Noctua p12 and was thrilled.

The fan has the temperatures of all components in the system (Lian Li PC-P80N, Core i7 2600K; 2x Msi Twin Frozr III PE GTX 570 SLI) decreased by about 3 ° C. Not once you hear it.
The product is characterized by its extremely high processing Quallität and mature concept. Although the price is slightly higher, this is perfectly justified. For me to come as a fan only Noctua in question.