People keep talking about him as he has potential to be the best player in the world or one of the best, so it's pretty logical you should be able to be atleast toe-to-toe with 34yr old if you ever going to reach that "potential". People seriously act like he's some kind of saviour, who comes in as a CF and scores 40 goals a season till he's 32 and that's the thing which pisses me off. He's soon to be 26, he isn't a CF and he will be done by the age 30 and wherever he goes, i hope he can get 15 goals a season for the next 4 years so he might end up having 100 career goals something and that's the lethal striker we're talking about.
So yes, let's compare thim to Di Maria, James Rodriquez, Özil etc and that's the type of career he will have, as far it comes to peak and market value. Sell now when he has value because in couple years it will be loan after loan or you have him signed for a long term and nobody is willing to take him. That's the potential, that's still better than average just like i said but that's it.