How important is an LCD screen on your streamer?

Aurender has a Critical Listening mode that turns off the display for improved sound. It does and I keep it off. 

I use an iPad and consider the screen on the streamer totally unnecessary.  The great convenience of a streamer is best accessed through an iPad or on a smart phone.  

All my equipment digital displays are turned off for maximum sound performance.

For streaming, the only screen I need is on my tablet. And it's much larger than any streamer screen on the market.

I don't care much about having a display on the streamer, given that it is across the room, but the Volumio Rivo Plus has HDMI out to display the user interface and, more importantly, the metadata on your TV. That is a rare feature on streamers.

Not important to me at all.  I control my Innuos Zen MK3 through Qobuz or their Sense app with my phone or tablet and I don’t need more light in the room.