If I remembered correctly, the peak years of the people who were using a radar detector are in the late 80 to early 90 because laser gun doesn't exist yet. But now, most people don't bother with such device.
Why? Here are the choices I thought of.
A. Most people think RD is useless.
B. It is annoying to false.
C. They don't speed as much anymore.
D. Cops will not be forgiving on writing speed ticket to RD users.