When I did my short stint selling high-end audio and HT, we had a DLNA system (I forget the brand name) display/demo. It was always screwed up. Most of the time, it was dead in the water waiting for the supplier's tech to come by and get it fixed, and to tell us all the unintuitive things you had to do to keep it operating properly (example: it had to be shut down in a specific order). Unless DNLA has gotten a lot better than that, it's the last thing I would want to see happen to iTunes.
Not to be a fanboy, but while there are some limitations, Apple makes stuff that just works. And that's what audiophiles who think managing a library of 1,000 discs is more "convenient" than a server need. I also suspect that most of them are just looking to add a server to their listening room, not set up a multi-room wireless distribution system. When that is what you want, iTunes limitations relative to jplay go away and its ease of use becomes a huge factor. What these guys need are Mac Minis, tucked quietly away where they won't be seen or heard, and iPads elegantly accessing their music libraries and surfing to allmusic.com for the world's greatest liner notes. Add in something like Ammara, that plays native sampling rates automatically, and even the big hi-res users will be well-served. An Apple/iTunes-based system isn't hard to set up, and once it is, it is easier to operate than a CD player. Back up? Keep it simple. Get a small, high capacity HD, run a backup whenevery you add new content, then unplug it and store it in a firebox.
Like I said, you can make this about as complicated as you want, or you can enjoy the music. The choice is there to be made.
Tim
Tim, you've almost described my setup to a T. The only thing I'm missing is Ammara, but I'm also not interested in hi-rez files at this time.
The only "difficult" part was organization, and that was predominately because my iTunes library was a mess. I had my own files ripped at 256k AAC for work, together with a mishmash of other tracks that I had acquired from friends/family in a variety of lossy formats. There were duplicates, corrupted files, etc. that had to be sorted through.
I ripped all of my CD library (roughly 500) in ALAC. I would rip the discs while I watched TV at night. It took less than 3 weeks total. I've kept some of the better lossy files for music that is difficult to replace and for which I didn't have a physical disc.
I took the time to redo some naming, genres, composers, and other issues so that the library would be sorted the way I prefer it. For example, instead of having "The Wall [Disc 1]" and "The Wall [Disc 2]", I just have "The Wall" and the metadata handles the division of the tracks into separate discs. The advantage is that it shows up as a single album, and will automatically play through both discs.
The end result is that I have thousands of songs available at the touch of a finger. Most of my CDs have been boxed and stored. So far I've run into exactly two tracks that needed to be re-ripped due to skips/errors, and that is very easily done.
Currently the library resides on my Mac Mini, which is upstairs from my stereo. I control iTunes using an iPad. iTunes outputs wirelessly to an AppleTV that is attached to a Schiit DAC. When I buy a new desktop computer, I'll move the Mac Mini downstairs and cut out the AppleTV.
Nothing that I have done was complicated, and very easy to set up.
I will continue to buy CDs because I like having a physical copy of the music. And I will buy another CD player eventually, since it's the most convenient way to play visitors' CDs on my system. But the computer-based system will always be my main method of listening.