SA-CD/DVD-A?

So what do yall think about the future of these formats? I purchased two SA-CD's today Eric Clapton Slowhand and Incubus A Crow Left of the Murder. And I really enjoy both. But the thing is that it seems that their are not many avable at the local stores and Im scared to start a colection of them in fear that players wont play them in a few years and that this collection will be friviolus. But I do enjoy the quality.