Help !

So many foolish statements made in this thread.
1)  backup your data to the same disk drive if you buy a big enough disk, NAS or anything else. Sorry but this is idiotic. If your NAS fails, everything is gone. Even if you use something like a Drobo box or a RAID setup, always backup this data to another external disk. I worked with multi-million $$$ disk subsystems using RAID and you always backup to another disk. 
2) legally, you can’t copy something, keep the copy, and then give the original away or sell it. You paid for 1 cd. You copy it and the sell/give the original, now you have 2 copies.

Does anyone have experience with a CD ripping appliance that can directly store to a NAS server via a wired network connection? 

Acronova Nimbie USB 3.0 Blu-ray/CD/DVD AutoLoader

https://www.amazon.com/Acronova-Nimbie-Blu-ray-AutoLoader-NB21-BR/dp/B005CAMVKU

Geez...I guess I'm a real criminal. I've been burning CD's and giving copies to friends for years without really giving it a thought. How many of us here consider that a really bad thing to do?

Schubert, Ripping CDs doesn't have to be a tedious job.  Just set up the server and when you feel like listening to something place CD in the computer and start ripping.  Few minutes later first ripped track will appear in your playback program and you can start listening to whole CD without interruption (since ripping is faster than listening).  That way the only difference from what you're doing right now will be placing CDs in computer instead of CDP plus few additional mouse clicks.  CDs, that you listen to less often, will be ripped last, but CDs that you enjoy the most will be ripped first.  Listening to them again from the server will give you a break from ripping.  That way I ripped slowly similar number of CDs.  The only time consuming might be finding artwork of the less common CDs.

I believe in preserving original CD.  I rip into ALAC to save space (0.6TB so far), but any other lossless format is OK (batch converting formats is easy).  I keep copy of my music library on two additional 1TB HD.  I feel I need two copies because something might go wrong during copying (that can damage both HD) and I feel safer keeping one copy outside of the house (in case of fire, theft etc.).  I update only one of them after adding 5-10 CDs.  That way, in the worst case, I will have to re-rip only max 10 CDs.  

Do not toss CDs - just get rid of the cases and put them in a large box.

Ripping program is another issue.  You need program that will do exact copy.  I use XLD (free) for MAC, but for Windows I would use EAC (Exact Audio Copy) - also free.