Agreed Marc777,
Seems like some are trying to find reasons not to embrace a new technology and show how they can try to skin a cat cheaper.
I find this a bit odd because most embrace the slight, if any, improvements we get from all the little tweaks we constantly purchase. Be it enhancement in sound stage, texture, room issues, or whatever, they are all benefits you get from correcting for phase and is what Qol is all about.
Health foods are often more expensive than fast food. This is because healthy foods complete the human needs...not just try to solve the short term issue of hunger for the next few hours. Qol completes the signal and is not designed to solve a specific issue with a track, system, or room.