If you cannot see the towed vehicle in your mirrors now the camera in the mirrors will not do any better.

I considered the benefits of the mirrors with the integral camera over what I have now. With a "fish eye" wide angle lens it would sure erase the blind spots, but with the auxilliary wide angle mirror I now have and a small one I stuck in the corner of the flat glass larger mirror I have visibility from on front of the steer axle all the way back.

I would not want to have to spin my head from the mirrors, to the TV, to the road. I'll stick with my mirrors. They have done very well. BTW, to know when it is safe to return to my lane when passing I wait for the bumper of the passed vehicle to reach a certain point on my main mirror. After passing vehicles they "climb" in my mirror until they are so far back they are out of view. When the bumper climbs to a point I have learned provides a safe distance, I can return to the lane.

What I would rather have than mirror cameras is a set of cameras at the outside edges of the rear that show the wheels and tires of the toad. That way I can quickly verify my parking brake is off.