Classic debut album and the first piece of the Aerosmith puzzle that makes up the classic albums [IMO] from this debut to Night in the Ruts.
We have exactly the same dividing line when it comes to where the 'Classic Aerosmith' line is drawn. (nyuk nyuk nyuk)
Their albums after NITR all have moments of Classic Aerosmithness, but those first 6 studio albums, along with Bootleg, define Aerosmith. To me, anyhow.
Oh, and on a side note, I too, nearly cried from joy,at the Baltimore Civic Center, in either the very late 70s or very early 80s, when the boys came out for their 2nd. encore and tore the place down with the
Milk Cow Blues
I just got goosebumps just writing about.