I've seen you say this before...and I always hear the Big Lebowski in my head, "that's just, like, your opinion man"
I have heard the KTX pro...and felt them... now, granted,I haven't heard any $400 closed backs...but...I'm not sold. Koss headphones are ok...but for some reason some people are NUTS for them...I'm not a fan of closed back headphones either, but I have a set of Sony MDR7506 with fidelio L2 pads and I would take them over any of those lower tier Koss headphones.
I understand your passion...but it's almost misleading to sell the KTX as the be all end all, when it's more of a niche taste. It's like you are trying to convince us that Totino's Frozen Pizzas are better than any local-delivery-BS pizza...
this is just my opinion of course.