Don't forget it's the "new era" of Diablo II, so it's an entirely fresh economy even in the non-ladder part of the game, so a lot of things like charms and good rares will fetch a pretty nice price for a while
it's not super fresh since you can transfer your old characters to the new expansion. I moved all my old non-ladder items to rotw and will sell them later. but I got 1 new gc and made some good fg.