$10,000,000.00 For something you could make with a Raspberry Pi, mic, webcam, wifi adapter?

  "RockCam included a 900MHz Spread Spectrum Frequency Hopping 
  Microhard Spectra 910 radio..."

This is ostensibly to avoid detection, but with the proliferation of wifi all over the place, one station named "Linksys" or even one without broadcasting SSID will go unnoticed for a long time.

  "The custom mainboard we developed would enter in a deep sleep mode to 
  conserve energy, and would be woken up whenever the PIR sensor was 
  triggered to capture high resolution pictures that were then transmitted 
  via spread spectrum radio link to a central concentrator that was 
  Internet-connected."

So, it's using the same technology as those "advanced" hunting cameras you can buy on Amazon. Shouldn't be too hard to do something similar.

  "RockCam included deep cycle batteries which provided at least three (3) 
  years of operation without recharging in the field" 

A solar panel + battery pack would accomplish the same. Or if there's a lamp post nearby, you can tap into the power feed by running a small wire underground.

The biggest expense seems to be specialized hardware that provided encryption, custom data uplinks and secure RockCam-to-RockCam communication etc...

Edit: Further reading, the price isn't for hardware, but for software and other "data"? Er... If that isn't inviting a visit from MIB, I don't know what is.