Dear Experts! You advised me to buy Crumar MOJO. Because, firstly, it is a full-fledged musical instrument, and secondly, it is a midi keyboard at the same time. Right? I noticed that the Crumar DMC-122 is MORE EXPENSIVE than the Crumar MOJO, despite the fact that the DMC-122 is not a musical instrument, but only a midi keyboard. Please explain why this is happening?