I'd just like to point out that Arsenal paid 80m Eur for Nicolas Pepe in 2019/2020. You could also mention some of Chelsea's fees but that's an unrealistic barometer, Mudryk for instance. Reality is this is a guy who's won everything, but the market isn't what it was and the Spanish league has been squeezed (Tebas should take all the blame of course) so it is what it is. Overall i think we will insert a load of clauses in there, he seems a perfect fit for Atletico.
The biggest issue i have with this is i don't think we will get anyone in to replace, as a close like for like. We may go for another midfielder but i can't see us getting anyone who can play 9 and 10. We'll probably just keep an eye on how Echeverri does till January and make a decision then.