Great question.
To me its like a modern day movie, its put out there and played and played at the movie theatres till its not worth putting it on anymore because interest dies after a while and there are no more bums on seats collecting money.
I guess with pinnies it was the same. See how the coin comes in month by month til the interest dies, then shuv a new pin in next to it to see if the new title starts to get alot of interest and coin. Both pinnies and movies probably made the most in the first 12 months, then it was all down hill from there. So, I reckon 3 to 5 yrs would have been a goal and if used after that, it was a bonus !
I reckon Pinball 2000 models like Revenge from Mars and Star Wars Episode 1 would make good coin if re-introduced today to teenagers at the right locations because its both going to give out pinball and arcade interest at the same time. The fact that alot of machines of all different manufacturer types are still going strong, the design teams did a dam good job. They should be proud seeing games all over the world still being played and enjoyed.
