Why must there be one? Every town has a portal with a board writing Free Market upon and there is a skill of Priest called Mystic Door if u are lazy and don't want to buy a telerock...
first not every town has free market (kerning for example) also telerock to go back to town is overkill, "Return Scroll - Nearest Town" should do it and its only 500 mesos. also there was no such function in maple bbb and since there is Albert (npc), it will be OP selling inventory during hunt and have way back in just few sec. (make Mystic Door less special and unique)
