I think the reason why guys like Sai is because he is so reserved, so well mannered, so softly spoken, he is artistic and extremely refined and polished in every way. He is also extremely hot looking and is not afraid to 表示する off his outrageiously hot body. At the same time Sai is also very masculine. Sai is also very gay but does not know it yet. So he is a big tease. That is why guys like him. They like him because they can not have him. And that makes him irresistable.
