That explains why Jesus is still looking lean and with a full head/face of hair whenever he appears on toast or tree stumps.
And if there are tens of thousands of super heroes, that means there must be at least as many if not twice as many super villains.
It's mentioned in some of the 80s comics. There was a Superman miniseries in the mid-80s that tracked Superboy's progression to Superman, and there was a board in one panel that listed odds for where he would relocate to. New York was listed as well as Boston and several other major cities. As I recall, the odds were best for New York. DC avoids using real cities for most stories though.
Teasing every now and again but always too afraid to commit. I remember people getting giddy when Kilmer (Batman) mentioned Metropolis to O'Donnell (Robin) in Batman Forever.