Totally worth it in that case. But we're talking only Mbappe and Vinicius.
Midfielders need to wake up imo, or we're gonna become a top heavy team again. All danger comes from front 3 combining with each other now. Little to no quality service from midfield in the last third. Gavi and Frenkie need to do a lot more offensively. Or Pedri.
All midfielders were so-so in this preseason. Expect more.