[atoav]

In my judgment ARRI fixtures are not unreasonably expensive. Yeah they are pricey, but you get what you pay for, the engineering, including the elctrical engineering is stellar, the reproducability amazing.

Now whether you actually need those things is another question, but my opinion on ARRIs stuff is that it costs exactly what I would expect it to cost on that level of quality (and that isn't true for all manufacturers).