Stephen's AI fixture was the first tank I saw outside a store setting that used LED's. The heat output, or lack thereof, was really amazing. The dimming capabilities and the storm setting were out of sight.

But there's something about the over all color that I didn't like. Maybe it was too white, too blue, who knows. For some reason the tanks using halides just have a warmth to them that I prefer over led's.

I can say that for some reason, I had trouble getting accurate colors when photographing Stephen's tank vs the others using halides. So I guess my reason is price (like everyone else), and overall color.