I would agree High Speed was the most profitable game ever. Back in the 80's I went to the local distributor looking to purchase another machine to put on location and as soon as I played it once I knew it would pay off quick. Bought it NIB, brought it to my house, played it a few times, put down the mylar sheet that came with it (which paid off for what I've seen on High Speed playfields), and out to location where it paid off faster than I even expected. Still own it today and still enjoy it. I was lucky enough to talk to Steve Ritchie at Pinball Expo 2009 and his is such a comic. Great guy, wish I had the money to put him back into the pinball business.