I'd say it's because the Pico sounds much better than the Predator and because with medium gain I had to crank the volume knob to maximum to get a decent volume level out of the thing. Also also, with a high gain setting of 11, makes it all but impossible to use.
Eh... the price is fair. Of course most of that money goes to the C pads, as the other stuff doesn't cost that much. Hmm, been kinda curious about the sextetts, but I would bet they are sold already.