Hi OP,
I’m in the 70’s club as well. Today you can get the same or better sound quality and with streaming and have access to nearly infinite music. It is actually a complete game changer… and you do not need to get up. You can see my systems under my UserID.
Streaming is like all other aspects of audio… you need carefully chosen equipment and you get what you pay for.
If you want equivalent quality to the rest of your system then the streamer and DAC should equal about the same cost as your preamp, or TT, or amp. Or you can take a budget approach and get budget sound quality.
Qobuz is the best service. $14.99 / month gives you access to millions of albums. You plunk down your streamer, turn on, add an app to your iPad and control your streamer from there.
Unless you like to, fiddle with computers, skip Roon, you don’t need it. Life is too short.
For high end look at Aurender streamers, ARC DAC
For toe dipping Bluesound or LUMIX Streamer, and Schiit DAC.