The problem with LEDs are that they need to meet a better color temp. tolerance than what the majority of the population will be using them for.
Manufacturers arent going to put much effort into improving their LED
tolerance unless reef tanks can rival every day people looking to simply illuminate a room.
LEDs that meet tight color tolerances will no doubt be costly to us, always. Thats just the way things go sadly. 5000k-8000k is just fine for the millions of people that will just be lighting up their kitchen. So thats millions compared to the thousands that will be lighting up their corals.
Simple solution...Get EVERYONE into reef tanking!:p