Just a total ripoff to get you to buy twice as many speakers as you actually need. Don't fall into the trap!

Yeah, I am sticking with good old 11.1

This reminds me of someone I know who refuses to mix his music in stereo.  His belief is that if you mix music in stereo, when it's broadcast from a stereo radio station it would become TOO stereo; everything would be too wide aurally.
 
I couldn't convince him that that's NOT how stereo radio stations work.  To this day he still mixes everything in mono (and still hasn't gotten on the radio).

Stay away from sharke. He has mononucleosis.

I completely agree! I already have one extra ear so 2 is a mere luxury!

So true. Then the electric bass was invented to point out how inadequate your speakers were, coercing further purchases. I can't be certain, but have suspicions that the cowbell may also be part of the conspiracy.

Don't forget how they purposefully added hiss to cassette tape in order to sell this "dolby" crap

 
Second ear waaaay overpriced.