The CEO owns more than 80% of the shares, so you are right, he really doesn't much care if there are other investors or not.
But if he ever decides to sell, I think the shares are worth a good deal more, and minority shareholders will have to be paid wahtever he gets for himself.
He's been buying shares steadily for several years, and has paid $5 or more for some of his shares, so I am comfortable just riding along, and getting paid when he does.