Ebay has been my source. I bought one for the purpose of 'deconstructing' it for scans, decided it was too nice to abuse, and bought another. Since I have bought yet another because the condition was better still and the price lower.

There's a beauty on there now for $50 delivered (U.S.), I've paid half that and less for my used copies. If I didn't already have two more than I need, I'd buy it!

Ebay

Watch for reproductions.

Repop.

Original: