Interesting game. I found it a bit hard to click on the machines sometimes. And I took a while to realize the mechanic and manager take long breaks and not that they quit working. Was a bit disappointed in the most expensive machine was expecting to make bank... Turns out ppls still walk slow.
Edit: I think the rate of income is a bit slow for a game. Most machine over 5 real walk clock time to pay off. That's a bit much for a game. (And by my estimate the most few expensive take over half an hour... given the walking speed of the customers)