I have been using the Rocketfish wireless rear surrond HT speaker system that retails for around $120. When looking at the KEF Universal Wireless system that retails for $599 my question is what would make the KEF system worth $400 more? The Rocketfish system seems to work as well as can be expected for a 2.4 wireless system. My Question: is the KEF system really worth the extra bucks. Perhaps there is someone out there that has used both.