Shrewd and Knavish Sprite: Will the Real Andy Kaufman Please Stand Up?
This is an interesting read, touching on a point about Kaufman's work I hadn't thought about--the existence of Elvis impersonators as an aspect of the American Experience.
So while Kaufman certainly did not invent the idea of a full-scale Elvis impersonation, one could argue that he did invent the modern explosion of the phenomenon. Not that the Elvis impersonator subculture is necessarily a fulfilling contribution to the American experience, but it is unquestionably a fascinating one. He would later do the same for wrestling theatrics as he did for Elvis impersonations.