Actually, the items that arent usually sell are difficult to sell on the GE, for example, it wont take the same for me to put a whip and sell it than to put an earth tiara and sell it, the tiara would take hours but the whip would sell quick, to prove this look: I went to the grand exchange, put 4 tiaras of different types for sale, 50 cooked lobbys and 10k bs, i went to do my life and 5 minutes later i see the bs have been sold, if all works like this iits great, BUT, the tiaras and lobbys have been for over half and hour there waiting. See?, all depends on the item.