I agree; I was in the Aristo Cold Light head circle, owning several, but with major improvements in variable contrast paper several decades ago and the move to a color head had me asking why I needed a cold light head, tube type, at all. With built in dichroic filters and no limit to the intermediate settings, I see no need to go back to the cold light head. There have been a few things that have changed in photography as far as equipment availability and I've had to stop and evaluate each one for it's practical use. Two events happened; one is the availability of cheap color heads due to disuse in the industry and the demise of Aristo as a supplier. So I see color heads as a great diffusion light source with great adjustment controls.