In light of Chris Wells' observation, I found this quote from Jason Zinoman's NY Times review telling:
"One-Man Star Wars Trilogy" may seem like just an oddball summer gimmick, but it is in some ways the logical extension of where commercial theater is headed. The crowds at "Spamalot," a highly polished imitation of old Monty Python skits, laugh before the punch lines. And the many jukebox musicals—which, don't fool yourself, are not going away—preach to the converted.
The element of surprise matters less than the comforting pleasure of seeing something familiar. The geek audience has become highly sought after by Broadway producers.
I can't pretend this is postmodernism in flower—it's more like the pop-culture tail wagging the the theatrical dog—but it would seem create an opening for an authentic dialogue about pop culture. Or, one could argue, an ominous flattening of the aesthetic horizon. You decide, dear reader.