Second - Sound Quality. If you are purchasing music from the iTunes store it is encoded at 256kb at the HIGHEST and it can be as low as 128kb.
Just to update, I think with the move to all DRM-free, all tracks in ITMS are now 256 AAC.
I advise all my clients who are interested in Kaleidescape system for multi-zone audio NOT to purchase a Kaleidescape system if their music collection consists mainly of low BR music bought from stores like iTunes and not from a CD collection.
This is certainly a preference, but in general I would agree. That is, unless your music listening is non-critical. Really, if you are just having music playing in the background on less than high-end equipment (I know, another subjective aspect), then you will likely not notice the difference, especially at bitrates of 256. I have to believe that we'll see K add 2-way importing of music back into K from your computer (or streaming, though importing seems more likely) sometime soon. This would be especially meaningful now that ITMS, Amazon, etc are all DRM free, so problems with DRM licenses aren't an issue. Sure, the audio quality isn't as good, but they can't ignore the popularity of services like this. I have to think that quite a few K owners are not critical music listeners and, as such, have no problem with compressed downloads.
There are other multi-zone audio solutions, which are less expensive then the Kaleidescape, designed for iPod/iTunes integration.
Absolutely true. I have used quite a few of them including AirTunes through Airport Express, Sonos, Roku, Squeezebox, etc. For users who use iTunes as their primary music manager, these solutions let you easily extend that management to other zones of the house.
With that said, if you do like to purchase your music online I HIGHLY suggest
Music Giants. They sell lossless,downloadable music . I have purchased complete albums from Music Giants which delivers music in VERY HIGH WMA bit rate files, burned the album onto a CD and imported it into Kaleidescape. Just like a regular CD artist information and cover art is loaded from AMG into Kaleidescape.
Again, I HIGHLY suggest that, if you like to purchase music electronically then do it through Music Giants and stay away from services like the iTunes Music Store which sells at very low bit rates. You will end up with a much more enjoyable music listening experience with your Kaleidescape system.
My 2 cents.
These lossless services are thankfully growing, but are still pretty limited in catalog selection. I've bought quite a bit of music from MG, but I'd readily admit that their collection is far smaller than ITMS, Amazon, Rhapsody, etc. There are other services, some of which are Mac friendly (I've used HDTracks.com). There is a great site I frequent called Computer Audiophile that talks about music servers, high quality download services, etc. They have a section on such download services, some of which offer higher than CD quality downloads, which you can find here:
http://www.computeraudiophile.com/taxonomy_menu/4/19
Jeff