I use 325 credit ball Callaway Hex Level 55.
I see little to no difference between this ball compared Nike 700 - 800 credit balls.
I can hit my shots just as close as the expensive balls, and if you can putt from just about anywhere ball makes no difference.
Can`t see myself paying 800 credits for balls which are not going to improve my scoring stats 1 or 2 shots per nine https://www.youtube.com/watch?v=9xo3kxjpkTc
Buying balls are a choice a player makes or not, Get good by using the cheap balls and you will have no need for the top end balls.