I think it woild be a great idea to have potion vendors for all worlds especially when you are helping friends in an intense dungeon and need to get health and mana quickly so you can go back. It takes forever to get wisps and playing the minigames is time consuming. :?
If you had a potion vendor in every wold in the "commons" area, you can just go back to the "commons" and get it there instead of having to go to the dorm and then out to raven wood and then to the commons and have to run all the way to the potion vendor.
That might be just because i am lazy but oh well :P
