I've been using ME on a Core Duo board to power on and off the computer over VPN so I can access data on it but not keep it running while I'm not at home.
It's a no-brainer for servers, and still useful for desktops.
I fully appreciate being security oriented, but consider you're already yielding rights to firmware code since ACPI was introduced. How can you be sure your computer is not running while it's seemingly off? Possibly by monitoring power consumption externally at all times. Because rogue BIOS might turn off all fans and start executing code.
It's a no-brainer for servers, and still useful for desktops.
I fully appreciate being security oriented, but consider you're already yielding rights to firmware code since ACPI was introduced. How can you be sure your computer is not running while it's seemingly off? Possibly by monitoring power consumption externally at all times. Because rogue BIOS might turn off all fans and start executing code.