Was Gareth Bale Worth 100 million Euros?

According to Zinedine Zidane no player is worth that much. He believes that its too early to see his value and you would have to wait at least a season to see his value. But Zidane isn't alone in this observation Toni Nadal a trainer said "Its exaggerated what Bale costs.." according to  Marca.com Nadal thinks this money should be directed somewhere else instead of a single person.