You're right Tony, 20 cents (amended above) but I think you got a couple of credits for that - pretty sure 10 cents got a single game.
As an aside, the milk bar frontage is still there, but it's now part of a yuppie house. I recall acting for the people selling it about ten years ago, they'd had to keep the milk bar facade to satisfy a heritage overlay requirement, so knocked down everything except the street frontage walls and built a new house onto that.
I won't go look at it though as I have my memory of the place I cut my teeth on pins, and plan to keep that memory intact! :)