I'd wait for a price drop. The game is undoubtedly short, but what's special about it isn't the cutscenes so much as the gameplay experience as a whole. I doubt we'll see KH3 before late 2018/early 2019, so the price for 0.2 will drop long before then. 1.5 and 2.5 for PS3 dropped price pretty quickly, and I think we'll see something similar with this too.
Give it a few months, then check the price. Wait to buy when it's what you feel comfortable with, I think it's worth playing.