I dont know if he was worth 10£ million but he is one of the best in europe at least. Not the world. And you are right about the little amount of money that Inter get. But they knew that he was homesick(sounds like a little baby) and therefore they let him go chip. It would be hard for Inter to find a good player as Georgatos this summer. POssible and good replacements are the following:
Chivu (AJAX), Sergi (BARCA), Candela (ROma) BOSVELT ( PSV EINdHOVEN), VENETIDIS (PAOK) greece, This last guy is only 23 and very good player Benfica wants him But he is too expensive.