I have forage tied to movement and I get stuff all the time where ever I go. When I need to go to a particular zone in search of something special, I try to find a zone where something else I can use may drop and farm at the same time. I am more aligned with the idea of cleaning out forage tables and removing items that don't serve a purpose. That should effectively raise the successful acquisition rate of the items we do want. I would not want to see a forage vendor added. Things worth having should require some effort to obtain. It's either worth it to you for the tiny AC/HP/Mana boost difference for the current "best" stat food or it's not. Maxing tradeskills and needing occasional forages from far off zones is much different than needing a high quantity of item to make stacks of stat food/drink.
In addition to collectibles being available from Overseer? Perhaps if they were an amazingly rare and no drop. Or...perhaps not.