I would say most of the people who go to the PHOF have no clue who Tim is. The people who are passionate about the hobby are probably a small portion of his customer base. Most probably look on websites for things to do other than gambling and see that there is a Pinball Museum.
Personally, I'm kind of torn about the place. I used to live in Vegas and would visit all the time. Over the years I've noticed that maintenance on the machines has really gone downhill, and a lot of my favorites would be beat up pretty badly or not functioning at all. I will still visit the PHOF when I'm in town because of their awesome selection, but the place could be so much better. Knowing that a lot of the money they bring in goes to charity helps my opinion of the place.