They only lose on price/performance in the short term. I'm aware of no other fan boasting a 6 year warranty and in my experience it is extremely rare for a high performance fan to last that long. Longest I've ever had another high performance fan last before starting to die is about 3 years. Now maybe I've just been unlucky, but that 6 year warranty is worth a pretty big price premium to me. I bought my SP120s half as an experiment to see if they can last 5+ years.