Do I need it? No.
Did I buy it because it's 2$? Yes

its literally $2 right now.

The game does a horrible job of teaching you how to play it. Feels like you are just tossed in with practically zero guidance. I don't need a Point A to B marker with guide lines on everything but a good tutorial is kind of important when you have a bunch of different things all with loads of options you can tweak.
The decision to continue their predatory DLC practice and even make it worse as they are adding a subscription model to the game. Do not support single player games getting MMO style monthly subscriptions if you want to play all the content.