Well. They signed our emotional leader who was loved by almost every Juventino. That's a big slap in our faces + they're getting him for pennies. Absolute robbery. There is obviously a good reason to be happy about for them.
Why does it matter if other clubs would have jumped for 40mln euros? He would just reject their contracts and still pick Milan, if his desire is to stay in Italy, which it apparently is.
As for your last part: we proved over the years that we sell our key players. I don't know what surprises you. We gave away Tevez. We sold Vidal for peantus. We made Morata a desirable player and let him go. We sold Pogba (but at least he went for a decent amount).
I was expecting us to sell Sandro. But it was Bonucci. It had to be someone.
Now i'm just interested how he will spit on Juve in his first interviews.
Almost all our former players do this lately so here probably won't be different.
Kyle Walker is set to become the world’s most expensive defender on Friday with Manchester City prepared to spend up to £54 million ($70m, 61m euros) for the out of favour Tottenham player.
City also nearly made John Stones the most expensive defender of all time when they paid Everton €58m for the centre-half's services shortly after the arrival of Pep Guardiola as coach last summer.
However, that particular title belongs to Brazil international David Luiz, who moved from Chelsea to PSG for €62m in 2014 only to then return to Stamford Bridge two years later for €39.4m.
I don't think that's the case, it didn't have to be anyone. Just circumstances, not a financial necessity. It might seem like it but there's no way Bonucci would have been in the top 5 players we'd be looking at selling if it was a financial consideration. Something has happened and that's it.