It's really a question of end-user control: Do you control your data? Is its license free-as-in-speech (i.e., can you use it however you want)? Is it technicall

It's really a question of end-user control: Do you control your data? Is its license free-as-in-speech (i.e., can you use it however you want)? Is it technically free (i.e., can the data be easily integrated with other platforms and applications)?