Unless they are dropped at a lower rate than the demand is going up, of course... ;) If that was the case, then the items have to be eliminated from circulation. As of now, it's pretty hard for those items to disappear from the game. Especially since the old wilderness is back. players using barrows armor and losing it will be transferred to the player that obtained it. The previous wild eliminated items, which caused items like abyssal whips and dharoks armor to shoot all the way up. (12m for dharoks..yikes). Now of course, everything can be re obtained again. Even losing at gravestones is guaranteed for someone to pick up item losses which then can be recirculated and increasing the supply substantially.