The initial hit is steep but the RAM parts are pretty much indestructible and the mirror arm has a lifetime guarantee so the only part you would have to buy is the mirror itself. Add in the convenience of adjustment without tools and, in my case, the better rear visibility and its a lot easier to justify the cost. I initially used a $5 junk yard mirror to be legal but couldn't see anything but my arm. I then tried a Ken Sean and it was better but I was still seeing mostly an arm. Installed the Doubletake and all is good now.