In that price range I bet most players will have a good DAC built in. The obvious difference is with separate components you can choose both in stead of one. But this only helps if you have the opportunity to listen to different transports and DAC’s and can choose the ones that sounds best with the rest of your setup.
You could also consider to skip the CD’s entirely and utilize a higher end streamer and DAC than the Bluesound Node (which I think a wonderful component by the way). Combined with your (lossless) streaming subscription this may even improve the sound more.