The point is everything can be debated. You mentioned radions and par...there are plenty of people on this forum and others have beautiful SPS dominanted tanks that are thriving under cheap black boxes. As for as the nyos skimmers... they arent cheap, however i have never had to fiddle with it to produce outstanding results. It works and it is easy....and quiet.That is worth the cost of admission and i have zero regrets.LED is easy. Radion have measurable better power (in PAR), spectrum, spread, and better controllability, mounting options, aesthetics, etc. Whether those additional value worth the price premium varies depends on people. But at least I can find out what I'm buying with that premium. For Nyos skimmer, I don't know what I'm paying that premium for ... If there is something I'm missing, please point it out.