Reports say Manchester City were willing to break the £100million barrier to sign AC Milan star Kaka.
“Special players are maybe worth that,” Ronaldo told the Daily Mirror.
“I agree with that. When you are good, when you are a special player, you are more expensive than the other ones.
“That’s normal. It’s like cars. Some cars are better than others, that’s why they’re more expensive.
“It’s the same with players. But this is only my opinion.”