Don't tempt me...
I'm sure it's comin' back -- heck, vinyls and cassettes did.
scan0002 by Mark Hardy, on Flickr
I actually had a Lafayette LR-4000 Quadrophonic receiver back in the mid-1970s.
Four Marantz Imperial 7 speakers - one on each corner of the waterbed.
And Dark Side of the Moon.
But I digress.....