By the numbers, the secure enclave implementation is $50. I wonder if Logitech will get a shot at TouchID like the Crayon did for the Apple Pencil? I'd pay $50 to add it to my K380.
$99.00 Magic Keyboard - US English
$149.00 Magic Keyboard with Touch ID for Mac models with Apple silicon - US English
$129.00 Magic Keyboard with Numeric Keypad - US English
$179.00 Magic Keyboard with Touch ID and Numeric Keypad for Mac models with Apple silicon - US English
$99.00 Magic Keyboard - US English
$149.00 Magic Keyboard with Touch ID for Mac models with Apple silicon - US English
$129.00 Magic Keyboard with Numeric Keypad - US English
$179.00 Magic Keyboard with Touch ID and Numeric Keypad for Mac models with Apple silicon - US English