What about the notwork?
Uploading to the net, now known as the cloud, is not only slow but unreliable; connections fail or are simply not available. The same applies to downloading although that's faster. Anyone who relies on cloud services for their data is asking for trouble, frustration and inconvenience - and the continuing added cost of storage and possible upgrade of their internet service. Please don't take my NAS away!
The same applies to phones without SD slots; mine doesn't so I have an OTG with me at all times as I never know when the connection will drop or disappear.