Last week was the first time he opened up his home for public viewing in order to raise money for the Ankeny school system. I think he expected to make 5000 dollars, but ended up bringing in 30000 dollars.
It is his personal collection, he has more cars but he can't fit them all in anymore (I know what that feels like). He is going to be expanding so he can bring in all the cars he has stored around the country.
And no you cannot see them, you missed your chance.