MFSL cd's vs. Redbook cd's


I am still fairly new to this hobby. Prior to a couple of months ago, I had never heard of Mobile Fidelity cd's. How much better sounding are these disc compared to standard redbook cd's of the same title? Do the high prices on eBay and other sites equate to a higher quality listening experience? Thanks in advance for your feedback.
houstonjazzfan
Yea I've heard that from friends who own the older issues Rja. I wonder if at all what they have changed (gain 2) or whether it's solely dependent on the initial recording quality.
It may have something to do with the quality of original tapes. Some titles may never sound very good no matter what they do with them.
I have the Rod Stewart "Every Picture Tells a Story" on MFSL CD and this is the best recorded version of this Album I have ever heard.