I just changed out one of my EM's to 100% LED's. I stuck with warm retros from CT and it honestly looks about the same temperature wise, just a bit brighter. I too am generally not a big fan of too many colors, but it's a personal choice. I know I would rather buy a machine with tasteful LED's vs one wit hot 44's that bent the plastics, but again these days routed older machines aren't too common.
Go with what you like best personally!