Balls are only expensive when you buy expensive balls
Not too mention the fact that the OP is currently wasting a lot of credits on Focus Boosts.
Okay, before I get slammed, wasting may be a harsh word. I understand that some people need this tool. But come on man, unless I am mistaken, those boosts are like 30 credits a pop or something like that.
PS: Oh, and to the OP, why are you purchasing Shot and Putter Pals when you belong to a club that offers members these items for FREE?