User blog comment:Naruichi96/Mystery of Shanks, Buggy, and One Piece/@comment-99.243.47.188-20140513232314

Maybe the one piece is what connects the poneglyphs together, which would explain exactly where all the ancient weapons are(Thus would help 'wage a war'. As for why Buggy doesn't care? I'm pretty sure he doesn't know how to read poneglyphs.) I say this because Whitebeard's dying words implied the will of D and ancient kingdom were connected with the One Piece, and Rayleigh stated they found out what the history to the void century was (The only crew to ever get to Raftel, says Crocus). A piece of treasure would be anticlimactic, it was stated early on that luffy's hat was his "treasure", because treasure was just a word for something that some one valued a lot (A concept Buggy was unable to grasp). So if Roger says "you want MY treasure, you can have it"...perhaps he was referring to what he valued most, The information from the final poneglyph that ties all the loose ends of the poneglyphs together.