We're paying for potential with Kulusevski, and if the amount is a bit more because of other interest then so be it.
It's easy to be a sporting director in hindsight, but all transfers are a risk. We have to hope Kulusevski has the mental strength and luck with injuries to succeed.
Personally I'd rather we went around Europe paying €30m+ for 19 year old's than established free agent players on astronomical wages. At least the club is now showing a plan for the future.
This summer we signed De Ligt (19), Demiral (21), Romero (21) and Pellegrini (20) for a combined €140m book value, so we should expect more in future. We have to pay that bit more and run that risk with potential so that further down the line we don't have to pay €80m or so for a player. Isn't the dream of the club to sign the next Ronaldo before he is established?