I recently spoke at the excellent Cloud and Datacenter Management conference in Dusseldorf, Germany. There was 5 tracks full of expert speakers from around Europe, and a few Microsoft US people, talking Windows Server 2016, Azure, System Center, Office 365 and more. Most of the sessions were in German, but many of the speakers (like me, Ben Armstrong, Matt McSpirit, Damian Flynn, Didier Van Hoye and more) were international and presented in English.
Note: Azure Backup Server does have a cost for local backup that is not sent to Azure. You are charged for the instance being protected, but there is no storage charge if you don’t send anything to Azure.