So I have a question that is basically impossible to answer...

Should I get a MIDI pickup for one of my (several) guitars?

Or bite the bullet and pick up some keyboard and learn how to play it a bit?

I am looking to create more "atmospheric" pieces but I am absolutely terrible at piano.

I am not that much better at guitar, to be honest.

Songs I like: "Push The Sky Away," "Fifteen Feet of Pure White Snow," (both by Nick Cave)

So trying to figure out what the best path for capturing MIDI values.

I would want something that is velocity sensitive (I guess) since I do want to be able to capture the dynamics if possible (I don't want to go back and edit the audio level of every note by hand).

Anyway, sorry it is such a vague question. Just don't know which way to go...