While that’s debatable, he’s obviously amongst the very best. But that’s not the point. What’s important is, wether he’s still worth this much money, once he’s 35 or 36 years old. I find that quite unlikely, to be honest. Paying for past performances rarely works out. Juve are risking quite a lot here, in my opinion.
The price wouldn't really matter for clubs who benefit from his goals and the success he would bring, as well as the marketing of the club brand.