CD Player vs. music streaming

For myself personally I have heard high end CD players from today and  my LINN IKEMI from 20 years ago surpass the sound of streaming. Even implementing a high end DAC there is something lost in the transfer. Hi resolution streaming on the other hand shows promise but you are limited to what is available in that format. I love record store scavenging. You can buy CD's for a buck, used vinyl is cheap, it's something to do. Plus there is the ritual of putting that needle down seeing that big record spin. Putting the CD in a drawer that glides. It's the physical touching of an expensive machine I like.  

If you plan to use Roon and want to take advantage of it's upscaling capabilities, you'll need a fairly robust "something" to run Roon Core.  There are a lot of choices out there, personally, I'd stay way from running Roon Core on a laptop or PC and opt for something designed specifically for it. 

I started with an Innous Zenith MKII running Logitech Media Server.  SQ was excellent and I could use it for whole house stereo combining the Zenith (RAAT) with Raspberry PIs (RAAT) and AirPlay endpoints all into one "zone." 

I decided to try Roon and haven't looked back.  The Zenith can serve as a Roon endpoint and server.  As an endpoint, it is excellent.  It works as a server until you use DSP and upscaling at the same time, where I experienced dropouts.  To solve that problem, I purchased a sonicTransporter i7 for Roon DSP (without an SSD drive) to host Roon Core.  Everything is now working fine.

Had I not purchased the Zenith first and started with Roon, I would have taken a different network media server/streaming approach. Having said that, I'm quite happy with I have and will stick with it for the foreseeable.  That combination works well with my DAC (an Audio Mirror Tubadour II SE).  

You need both , cd and streamer . Streaming quality is inconsistent quality wise. Just my 2 cents worth.

I have a healthy vinyl collection and CD collection of which I have ripped about 60% of the CD's to my server.  I did a lot of homework before jumping into the streaming field and was running JRIver on a laptop to pull my ripped music. 
After attending AXPONA 2019 and seeing the many rooms and use of streamers ( mostly Aurender ) , I settled on an Aurender X100L  w 6TB  of storage ( lovingly used ) . Coupled with its Conductor App and Qobuz I not only have direct access to my ripped CD library, but Qobuz HR has been exceptional in broadening my listening of all genres . The Conductor app also gives you access to a huge base of internet radio stations.  Aurender also gives you free updates and their customer service is exemplary.  
I still love throwing an album on or putting a CD in the transport, but if you have a good+ system , buy a good+ streamer and don't look back.  ( If you have a good DAC get a streamer without one. )   

Happy Holidays & Happy Listening ! 

IMO unless you are looking for the best possible sound which would be a CD Transport and DAC you are probably better off getting a good streamer and a good DAC.  A transport and DAC will probably give you better layering of instruments for classical music if that is your goal but that won't come cheap to my ears.

Happy Listening.