As bigshot has said, and I agree based on my experience, the extraction of "surround" info doesn't need the discrete channel precision this sales gimmick is pushing.
It's a way of the industry trying to resell the same thing for the umpteenth time on the umpteenth format, higher-priced, requiring new equipment, etc. etc. etc.
While realism can be fun to strive for, the fact is that you can enjoy the music from a tabletop radio and be fine, too.
The pursuit of pleasure can take the form of commodity fetishism, gear worship, music enjoyment and study; the three are not mutually exclusive, but neither are they dependent upon each other, as the salespeople would have you believe.
This is why I don't mind the audio jewelry industry; if you want to buy that stuff, go ahead, doesn't hurt anybody any more than someone going out and buying golden earrings or neck chains.
Everyone needs a hobby.