Cloud 5X20 Azure Stack Cloud Talks LK

I asked following questions from Thomas Maurer on Azure Stack.

1. What is Azure Stack and what is the need for an organization to have one in their datacenter. 
2. What are the differences between Stack Edge, HCI and Hub?
3. Can you briefly explain few use case scenarios where Azure Stack can be used?
4. How to purchase an Azure Stack?
5. How support model works? Should I reach out to OEM or Microsoft if something goes wrong? 
6. Is there anyway to try out it’s features without investing on the whole thing?

Watch it on YouTube -> https://www.youtube.com/watch?v=S16xOXFBq7c&t=3s