I stream 24/7. Do you?

Streaming can be wireless or wired.  With respect to $/SQ ratio you will get umpteen opinions here.  IMO it’s equivalent to CD; if you have a CD Player that costs say $1K you need to spend about the same on a streamer to get equivalent quality. And as with CD Players, you can spend much less and get excellent results.Megabucks will also get great outcomes but if you are new to streaming I suggest starting in the low cost area and upgrading if you find yourself liking it

No. Why would I? Silence can be just as enjoyable. If you steam all the time, you kind of lose that appreciation for your system when you sit down for a real listen.

As for leaving equipment on or off, I’m inconsistent. 

I don't do 'background music' - I agree with @goldenways that silence can be just as enjoyable. The music I have on is always in the foreground of my attention. 

@mahler123 Thanks for your answer.