Now available from DriveThruRPG
The latest re-release from the Tekumel Foundation is the book that started it all - at least as far as Petal Heads are concerned: Empire of the Petal Throne (EPT). Now available HERE in PDF or print form. The hardcover print version is $24.95, just shy of the price for the original boxed set.
The original boxed set came with a comb-bound rule book, a large double-sided map of Tekumel, and a colour map of the city of Jakalla. In addition to the main rules, this re-print has:
"... a four page set of charts and tables, errata for the original game, a map of the City of Jakalla, a b&w map of the Five Empires, and a citizenship document for Tsolyanu, the Empire of the Petal Throne!"
Note that the original world maps and Jakalla city maps are available separately for $8 and $4 respectively.
Out of curiosity I did a search to find out how much $25 spent in 1976 would be worth today. According to my source, the value in present day US dollars is $108.75 - per the screen-cap above.
So I'm thinking this reprint is a pretty good deal!
Reviews from R'lyeh has a recent review of the new version.