They are a higher class of product though. Even though the price (here) is close to the same.
I run the MVVS 26 on a 3270 "compact" muffler 18/8 Xoar Laminated at 8500 rpm on the ground. My 3W 28 is similar in performance but I use a 19/8 on that one for similar revs.
Even though the "xxx rpm at YYY prop" is not al that meaningful. Once you experience the throttle response of a higher end product, the respect for the lower end ones soon goes downwards. It is all about throttle curves and the mid range response on the higher end products is nothing short of fantastic.