That is a very narrow view of how these things work.
What is needed is positive enthusiasm from people who have had the experience. That is what encourages others to bid large amounts of money.
If someone says "it was fantastic" then others will follow.
If they say "it was OK, but we didn't see as much as we hoped" then not so much.
This particular guy has paid his money, and was very nice about it. It's the next guy I am concerned about.