Aromatic Azulene
I knew it had nothing to do with happiness, but I thought there was a difference in amount... Like the glasses coming out 30% and the gold watch only 20% (fake numbers).
I think, in the overseer item Guide, or maybe the Fishlab guide, the author says that another user, whenever they opened a drop, got an error message stating the name of the item they should have received and the drop stayed in their inventory to be opened again and again. This is how they concluded randomness. I've opened tons of them, too. Seems pretty random. I haven't noticed that I get one item or items any more often than the others.
I've noticed weird posting things lately. Like.... all of the time-stamps being totally off. But never a whole bunch of posts out of order. But I believe Gaia is doing some kind of security overhaul right now. Maybe that is the source of the problem.
I always open the fish drops if I get them for cheap. I keep hoping I'll get a Goldfish Scarf or Arrowfish Sword or something.
My personal preference is to do both. Vending by itself drives me crazy because it's so repetative but Exchanging can go at a very slow pace sometimes. So I'll vend for a few minutes here and there while I'm waiting for responses or for new sales to open up and such. How do you typically gain gold if you don't like the MP but can't Exchange?