1 guy "taking" a free game paid by another patron, and left behind.
it's like a business removing a soda machine, because that 1 guy came in and took a quarter out of the coin return, and left with it.
why should anyone put effort into this credit clearing activity at all?

i like the "test play, take notes on issues" approach mentioned above.
and i've routed, long term, both a newer stern pinball and an arcade. although it was space advantage for me, the money split i received just paid for maintenance on the pinball, while the arcade's yield was all pure pathetic profit.