compare music now to music from the 60,70,80 and 90 , none of the new music will last , none of it will be remember , drake ? katy perry ? hanna montana ? justin beiber ? HAHAHAHAHA gimmie a fuckin break no one will remember any of this shit in ten years
Even during the eras you listed there was always bubble gum pop music whose demographic is 12 year old girls. Rock music caters to a completely different demographic.
I agree that selling music no longer profitable, but that's probably a good thing because most of the money was made by the labels, anyway, and they often dictated to the artists. Today, an artist can do exactly what he wants and not give a rat's ass what some label head and his obsolete production/distribution model thinks.
If a band wants to make it, today, they have to do it the old-fashioned way: one fan at a time, and hope you get to the point where you play big rooms.
Definitive Rock Albums?
Lots of good ones already mentioned. Here are a few that belong on Mount Olympus:
Deep Purple- Machine Head - aka The one with "Smoke on the Water."
Free - Fire and Water - aka The one with "All Right Now."
Thin Lizzy - Jailbreak - aka The one with "The Boys are Back in Town."