Hmmm yeah, PS has some cool bells and whistles, and photo-editing capabilities (if you're into that), but otherwise it's not really a great dedicated drawing program, imo. I have Photoshop CS6 and I use it only for the font tool tbh. Lol. I guess it's because I don't really care about the fancy effects... So this opinion is coming from someone who doesn't really make use of filters all that much.
What I like about CSP is that it's a smoother experience, and doesn't require 10,000 horsepower and a donkey on a treadmill to use it like PS does. 
But i think we can all agree that Adobe CC is expensive as f*ck
My sister has the subscription because she's used to Adobe programs, but her wallet is always crying.