I dunno. I think that the Sound Devices MixPre-3 II is around $900, so things like this TE model seem kind of over priced even compared to professional tools that do more.

I have no problem with folks who want to pay whatever for whatever- I play pedal steel and own a modular synth, which are two of the dumbest, difficult, and expensive ways to create small variations in current.

But even professional level tools are less expensive than TE equipment.