Interesting thread.
Currently I cannot listen to 24 bit files in their full glory (Apple TV to Arcam AV9/P7 is my primary music source), but as the music readily available in this format is not my bag, I have not felt I was missing anything.
However, the other day I discovered that if you register on the Nine Inch Nails website, you can download their new album, legally, free of charge in 24 bit 'Hi Res'. Which I promptly did but cannot play in 24 bit form!
If this starts happening with other bands I like as well, I am all of a sudden going to have to find a way to play these files.
Is Squeezebox the only option that doesn't cost a bomb?