Good suggestion, but there are a few errors. Firstly, this might upset the economy of runescape. As you can see, in this case, at some point of place (air altar for example) the price of an essence increases just because it's unnoted.. Assuming that someone pays 2k extra for a trip of 25, that would mean that it would be an extra 40gp per essence. Let me direct to you a question. Has there been in any time of Runescape history where you would pay more for something that is unnoted like say... at the Grand Exchange? Secondly, if Jagex announces it's decision to come up with such a thing, would it not be equivalent to publicicing and indirectly encouraging people to participate? If so, then what about the other skills?