I had a first edition "Understand? Good. Play!" (A book of translations of quotes from Hatsumi Masaaki, GM of Bujinkan Budo Taijutsu... At one point it was har

I had a first edition "Understand? Good. Play!" (A book of translations of quotes from Hatsumi Masaaki, GM of Bujinkan Budo Taijutsu... At one point it was hard to get and were selling for $700 - they are now $50. Had a friend find a bunch of $100 bills in a used book in Salvation Army in SF...