With the last patch 4.0.6 blizzard changed the "South Island Iced Tea" Recipe. It now only costs 1 Tropical Sunfruit and 1 Refreshing Spring Water to create 5 South Island Iced Tea. After blizzard removed all the other cheap vendor recipes from the acm list, I don't think they realised what they have done with that change.
Only 1280g for that acm, go for it if you haven't done so already.