This is an interesting review of the Amazon Echo Show and it makes a good point I hadn't thought of. Some information is inherently visual.
"A big part of the value in the Echo Show was how useful it was to... well, have the device SHOW me information.
Having some time to sit there and digest the info in a visual way was immediately useful. It's not necessary, but it is nice. And if you're not right in view of the screen, you can still talk to the Echo Show and get the info you're looking for."