I like the K&Ns mainly for their good reputation in aftermarket filters, but the 17mm nut was a deal maker. I also got fed up with those other brands that never seemed to seat right and an oil on my garage floor is completely unacceptable. I also got a good deal on Amazon when I purchased 6 of "em.
That's what I intend to do. Might get Purolators though unless they are still that fugly yellow color.