Quoted from BigAl56:

Imagine working in the office and the boss comes in and says he needs testers up in the lab to play more games. That's what the job was like. We would spend the day doing the assembly and wiring exercises Philly was doing for this post, then testing and playing until time to go home. We knew a game was going to be a hit if we were still playing past 8PM.
In those days we played after-hours for .25 a feature. Every time a player completed a target bank, earned multi-ball, doubled bonus. etc, the other players had to throw a quarter in the pot, winner got the pot.
Of course we were all single guys in our 20's. The consequence of having a dream fun job was it only paid about 22k a year. After I got married my new wife made me quit and get a 'real job'.