Vinyl comeback now, cassette tapes next?

No. It was never a high quality analog medium when it came to prerecorded material. It could be pretty darn good when done at home. It will return about the same time 8-track does. :-)

-Wendell

Uhhhh, No.

Except for the cool smoke they emit in old "Mission Impossible" intros, there's not much of an upside.