Hello Brian,
If you really enjoy the iPad/Touch interface to Airport express then by all means keep it. Dune is not anywhere near this convenient. What it has is simply the capability to keep your DVD-A/SACD rips living on as FLAC 5.1ch. Will it be worth it to rip it? I don't know how many discs we are talking about and only you can decide if it's worth Your time..

DSP8000SE, DSP7200SEHC, DSP5200SE sides, DSP7200SE rears, 861v8, 210, Sim2 Ultranero 4, Stewart Cinecurve 2.35:1, XEIT CM-5E Anamorphic lens, Dune HD Duo Cinema 8K and Wireworld Platinum 48G HDMI -> UHD722 -> Shunyata Omega Ethernet. Shunyata/Furutech power-cables/filters. SR Master Fuse@861v8. Uptone Etherregen with 10MHz OCXO clock.