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Channel Classics is one of the very rare company to record the music directly into the DSD format. I've asked the Channel Classics why they marked the DSD download so much higher than the 24/196. His reply was that the DSD file was same as their Master Copy in the studio and it was very high quality so it justified the price. Furthermore, he believed that the audiophile market would absorb the price difference.
Since their recordings were very outstanding , the hirez files , no matter dsd or 24/196, could achieve very high playback performance.
I preferred to purchase the original format and carry out the necessary DSD->PCM conversion at PC.