I'm responding to Jon's statement "A zero-hardware/zero-datacenter solution is the right choice for all customers in the future."
While I agree that the cloud can be a good solution for some business needs, I for one would never risk my company's daily JDE operations on the cloud. If any link in the chain between the end user and the cloud provider's system goes down, then I would not be able to transact any business. Imagine having to answer to your organization's management why users cannot create a PO, SO, WO or transact anything because of a service outage. The outage could be internal (which I admit could happen with an internally-hosted system), or external, such as your cloud provider or your ISP (this is the additional risk with cloud).
I'd also want to make sure that users have access to their data with the same or better response time as they have with an in-house database -- I don't know that the cloud can deliver that, but I'd be open to hearing of documentation about this.
Lastly, what happens to your organization's data if you choose to part ways with your cloud provider?
I know that Oracle is pulling out all the stops to push cloud, and I had plenty of "cloud" being shoved at me at Collaborate 2016. Until my concerns can be met, however, I'm one JDE customer who will happily keep my system in-house, and I'll bet there are many more out there with similar concerns.