I'm not saying its wrong or right. Its a gamble and a risk. Italian clubs have different priorities right now on a much tighter budget and probably investing in a young, risky, GK is not one of them and they rather not dump 10M. Where as the EPL clubs are pissing out money and Atletico Madrid have made big sales over the years and have liquid cash and look to rebuild and sell for a profit every year.
It would be nice to see Juventus, or even any other top team in the Serie A keep him in the league, but it won't be the end of the world if he goes either.
Italy's three top promising young GK's will be in Serie A next season anyways. Perin (Genoa), Bardi (Chievo), and Leali (Cesena).