for which the prizes are (primarily) coins & apparel (neither of which have any real monetary value
I may be wrong if I am not interpreting the prizes correctly, but it does appear that credits and balls are included in the prizes being awarded to at least the top 10, which is pretty much where the top credit awards go in the ready go's.
Now, I don't know how competitive or tough it will prove to be, but it may be similar to the challenge of finishing in the top 10 of the weekly "Division" where the top 10 places currently only offer "silver coin rewards".
It is not clear what type of ball but they appear to be included in the top 10 prizes. Being able to win balls to replenish ball hits in coin games is something we have never been able to do before, let alone allow the coin room specialist a chance to use their sponsor apparel to win credits (which do carry value).