well, put.
to push this discussion further, i do disagree with the generalization (it's not just yours, but that of many) that the 80s were a shallow era for music. popular music, yes, though i thought it was a necessary and happy departure from the disco glitz, on one hand, and the far too self-indulgent 8-minute songs that some bands put out.
the 80s, however, did lay the foundation for what was to come in regards to "grunge." beyond my obvious affinity for The 'Mats, there were other important bands such as Husker Du, REM (when the music still mattered and Stipe's vocals were incoherent), the west coast punk/metal, black flag/rollins movement, the Minutemen, Pixies etc.
for some, the argument could be made that had The 'Mats or Pixes or the Du's or Social Distortion to a degree had made it big, then Nirvana's influence would not have been that significant.
in some ways, the 80s provided America to re-apply its stamp on modern music, something which had to be reclaimed given all the important stuff coming out of England at the end of '70s. and the acts mentioned above sparked a late and great -- and last? -- push by the independent labels to grab a piece of the landscape.
the indies are making somewhat of a comeback, given the sudden and impressive rise of the New West label.
but, given the disjointed state of music these days and the proliferation of singles and ipod friendly downloads, i don't know if we'll ever see an era like the 80s again.
and i still miss vinyl.
jw