Are we living in a golden age of TMNT toys?

[TurtleWA]

Originally Posted by Lil Karai

This is the golden age of nostalgia for adult collectors and finally someone is catering effectively to that market.

Never thought of it that way. The nostalgia business is booming!

Has there ever been such big business tied up with nostalgic things before? What did past generations that may have had disposable income spend it on? Was there an unidentified market twenty or even forty years ago for nostalgic things? Or is this taste for everything nostalgic something our generation has evolved?