Financial survival undoubtedly feeds the habit. Canonical works are proven hits and guarantee bums on seats. Art, after all, is what you can get away with.
But at the risk of sounding quixotic, these repetitive offerings are resoundingly un-artistic. Surely one of theatre's tenets, like all art, is to ignore the script.
On the current course, ballet companies and dramatic societies risk becoming little more than covers bands.
No offence to Cervantes, or the Russians, but I'll give Don Quixote a wide berth - as I will The Royal New Zealand Ballet Company's Coppelia later this year, as I will any moth-eaten Broadway blockbuster.
A colleague argued these modern day incarnations are a re-reading with new choreography, innovation, twists and interpretation. But I say such is the stuff of karaoke.
Our audiences, performers and "classics" deserve more than an industry hellbent on typecasting itself.