I own a p3s and am thinking of buying p3 4k at Best Buy while it is on sale for $599.00. I also have downloaded the Litchi app. So my dilemma is do I buy the p3 4k for it's extra features or do I have about the same with the p3s with litchi app. I know I'm would get a better camera with p3 4k but I'm not a pro. What do you all think I should do ? Pro's vs Cons Thanks