I think the Motion 2 hits a really good sweet spot in Collectable Mopar Literature.

The 1969 model year was the highest sales for the Road Runner, so there is a built-in market of owners looking for brochures to go with their cars.

Both the Motion 1 and Motion 2 brochure interiors are quite similar. They invite you into a secret lair where only people like Sox & Martin, Paul Goldsmith, Richard Petty, and maybe you can play. I think these brochures are really effective in that way.

The Motion 2 brochure is so less common than the standard Belvedere or Barracuda brochures, so 1969 owners seek it out, and pay a premium.

Personally, I find the Motion 2 cover quite depressing. The context of it's reference to drugs, also found in some other 1969 Plymouth art, turns me away from it. I want to feel normal and happy, not sad and hung-over.