A small percentage is still a percentage. If 10 people started buying lots of machines suddenly because of that game, that would be 10 less games than you would usually see for sale. I know it was sort of a clencher for me, after playing Williams collection I said: 'That tears it, pinball is as fun as it was when I was a kid, I'm going to find some machines!', then I went to PAPA, then I had to have a machine, now I have to have another machine. Such a perfect storm.
Another factor although slim could be the 45 min video that Elwin has on pinball.org dominating the machine. There's a lot to do and that video pointed it out well to those who didn't give ripley's a chance.