If I was you I would first sit down and ask myself what it is I really want to accomplish musically.

Obviously you are interested in sound production.....but on the other hand you have no interest in playing or learning piano.

The piano being "keys" and anything you learn on it is basically applicable to other keyed boards and keyed instruments.

I wouldn't be buying expensive boards on a whim....until I knew exactly what I wanted to do with them first.