So, while I was experimenting with villagers with RainbowChin in a 1.8 latest snapshot server, I came across a cool discovery. You can trade melon blocks for emeralds. I found that if you have a double chest of melon blocks with a villager that trades an emerald for 9 melon blocks, you can get exactly 6 stacks of emerald. With the average price of emeralds being about 22r, 1 DC of melons = 8448r. And I think that you can find villages that will buy less melon blocks for more emeralds.With that in mind, I had the prices of my melon blocks at 1000r per DC. I think I may or may not increase the prices.But hey, more uses for melons!Not on an attack on potatoes, but they will give an emerald for ~16 potatoes.UPDATES:I have found a villager that will give you an emerald for 7 melon blocks.