Hello,
is this motor, or one with similar stall torque and no-load RPM available at a lower price without an encoder?
Unfortunately these motors are built to order in larger quantities and as such, unless you need a larger order,we cannot provide it without the encoder. Note that the encoder itself does not greatly increase the price, and if it is for a custom project, can be removed (de-soldered). You can find other planetary gear motors without encoders here:
robotshop.com/en/planetary-gearmotors.html