The market price of KhunPaen PraiGuman B.E.2546 when compare to the B.E.2543 (Code Tho) NuaKao version is much cheaper because they made for a more quantity than the very limited B.E.2543 (Code Tho) NuaKao version. This is a major reason that makes the price of the two KhunPaen versions significantly different.  

Anyway, both versions have the same properties and efficacies because all were made and blessed by the same LP Sakorn.

LP Sakorn KhunPaen Roon PhaPah B.E.2546 is a smart way out for smart collectors who would like to have LP Sakorn's good great economy-class KhunPaen.

LP Sakorn is a closest disciple of LP Tim, he learned so much incantations from his teacher. LP Sakorn lived with and served LP Tim since he was 15. He was ordained a monk in B.E. 2501, and learned incantations with LP Tim since then. It's in B.E. 2526, nine year after LP Tim passed away, LP Sakorn learned with LP Koon of Wat Banrai on extra incantations for some special amulet creation. 

LP Sakorn is a most important successor of LP Tim of Wat Laharnrai. When LP Tim was still alive he had publicly told that after his pass-away LP Sakorn would sit his place.

LP Sakorn is now 72 years of age and the Abbot of Wat Nongkrub, Rayong Province. LP Sakorn is respected as a greatest Guru monk of eastern region of present days.