If you're prepared for the task of putting your CDs onto NAS and like the idea of using a streamer then I can see no reason to buy a CD player. Are you thinking about this from a SQ PoV?
If so, it may reassure to know that I sold a leading £2K CD player recently as I could hear no difference between it and the Squeezebox Touch. Many people on this forum use the Squeezebox Touch, and I think the general consensus is that they are very good and have no need for an external DAC. Of course, you can always add a DAC later if you feel the need.