At Timezone Surfers Paradise, you can swipe more than once per minute because you can swipe 2 or 3 times and set up a 2 or 3 or even 4 player game on all the pinnys when u first stand infront of the machine.

Not when you are on the time limited plans.  I tried and was denied numerous times.  If you just have the recharge cards (money on them - then you are correct and you can swipe several times to add credits).

The TimeZone Manager today also confirms that games are $1.50 each on the pinball machines, unless you buy a $35 or $45 card which is time limited. They have also started a deal with 20 games for $30 if u spend the minimum of $30. Otherwise the std price is $1.50 per game.

Yeah - you are right - it does say $1.50 on the swiper display - however you would have to get your head read (or are a frequenting local after select games) if you didn't buy the time limited packages that offer more value per game .

In essence you have premium players (those that regularly use the recharge cards and pay the top price) and the vast majority that use the time limited packages.  Also the time limited packages start at $20 http://www.timezonegoldcoast.com.au/packages

It would be interesting to see the breakup of prices - but due to the time limited cards being so prevanantly used at that location - you will never be able to get an idea of price per game return (albiet only from the prepaid recharge cards).

You would only be able to determine
1.  Recharge pre paid cards - $1:50 per game (count)
2.  Unlimited play cards (time based) (count) - however your return is unknown as it depends on how many other games the user played in that time frame.

A simple count of games played - or swiped is not going to be able to determine a return based off the above. Albiet you could calculate a base figure i.e. Unlimited cards give a return of .40c per game (due to the high volume of all games played by the user in the time frame) + Recharge pre paid cards (count)

You couldn't state that each game played returned $1:50 - because it hasn't due to reasons shown above.

Would be interesting to see if they even worry about this in their business model - based off they just want people in there playing - I would think turnover is the key - not nessecarily per game quota's (only being used to shuffle lower count games out the door or pushed to the back end of the place)

Food for thought.