When you put new items to event fok ? Same prizes / same items since world war2.Im buyers needs new items.
edited to include full descriptive title - Ele
Also dont forget the non IM players and update ingame Daily Quests.
You said you tell MR Snail to give you new Daily Quests for high lvl Player which give Serpent Stone and Garnet Fragment instead of old dailys which nobody does anymore.