~snip~
Maybe because is not stable enough and having stability is the most important thing for a player while Lukaku doesn't have this. Also, Lukaku is not a cheap player and Inter Milan should spend too much for it while he is getting old, and currently, he is 30y old and not young anymore.
While I acknowledge your views on Lukaku's age and consistency, we can't overlook his impact on Inter Milan's attack. Lukaku, with his potent partnership with Martinez last season, was a critical asset. Inter Milan's substantial investment in Lukaku may seem daunting, but the potential returns could tip the scales. With Dzeko moving on to Fenerbahce, an expedient replacement is needed. Lukaku, still physically formidable at 30, could play a crucial role next season. As Scudetto hopefuls, Inter Milan must make wise moves in this transfer window, like bringing in Lukaku.