Well, for dual axis servos, Dynamixel actually offers pretty good performance for its price, considering the small sized package and motor torque. If you wanted cheaper, just buy 2 separate servos and assemble them with a bracket. It's pretty much the same thing.
![RIObotics_3-1643970437361.png RIObotics_3-1643970437361.png](https://forums.ni.com/t5/image/serverpage/image-id/298132i6017DD2A9C8A4C22/image-dimensions/338x312?v=v2)