How could we encourage return of nostalgically interesting bands by discussing them here? Some, survived the "ages": Stones, for one.
Another is Aerosmith. Black Sabbath.
These guys are ancient and they still ROCK.
How about the truly poignant works such as David Gates? (Bread). Listen to the painful irony of his "The Diary". Or "If", one of the shortest big hits ever.
Roy Orbison, unattractive as sin itself, but talented beyond belief, marketed globally as a "doper" to enhance his "image", the man would not even drink a beer! His work reflected his sorrow. His wife, riding her motorcycle ahead of his, a favorite pastime for them, killed underneath a semi. Then, some years later, his two children burned to death in a house fire. The man continued onward, one of his last still reverberating today: "Anything you Want, You Got It". He died 52.
Or, the phenomenally popular Marvin Gaye, killed by his own father in a parking lot! The man was exonerated.....
Nitpick: Marvin was shot in home having been seated on the bed with his mother having a discussion.
But your point is valid in all except one thing: Have all these artists been lost? I am about half your age but I know them... I've got a pretty large assortment of music and most modern artists still are inspired by the Greats of the Past and you hear it in new albums, either in an obvious homage or in subtle nuances.
I have recordings of Korn, Buddy Holly and Al Martino.