Arcade games - what is the cost?

[fiestymama]

Curious what the going cost is for the arcades that are in each resort? We have two resort days that we'll be hanging around the resort, so I want to make sure I have a little money set aside in case we come in contact with the arcade - my son is a big fan of arcade style games, so I'm sure if we see it we will end up in there, at least for a little while ;-)