I didn't realize that was the point of the marketplace. I still think it was a good idea because there are always potential complications (I'm sure someone has unknowingly swiped those berries thinking it was a steal before) but if its going to be a unanimous opinion then I'll just delete this post.
Like Mystera said, it's not the point of the market, it's just something that makes things easier. Before we had the market, you had to trade everything 5 at a time. This saves time for a lot of people.