If you were like me during cataclysm you heavily invested in Pyrite Ore. With the tantalizing hints that Epic gems might be prospected from the ore, players went heavily into the red after liquidating their assets.
Kyparite ore is already shaping up to be very similar in investment potential. It's used in purchasing patterns from the Klaxxi quartermaster. It's also used to craft some of the 463 weapons such as the Masterwork Phantasmal Hammer. Engineers can even use this ore to craft a engineering mount (Depleted-Kyparium Rocket). Jewelcrafters even have the option of prospecting these for gems. With a higher percentage of Mid range gems being prospected overall.
So the question for investing is what will become of this ore? The odds are very slim that it will be used for Epic Gems. The Cataclysm expansion version of delivering epic gems encouraged players to run higher level raids instead of just sitting in their home towns and prospecting for profit. Many of the Professions are built to get players out to invest time in leveling. Currently the only two major professions that can be leveled to their maximum without stepping out into Pandaria is Alchemy and Inscription. (technically engineering can be leveled to 600 without any need to enter Pandaria but the materials necessary are so heinous that it isn't a useful part of the conversation for now).
With Ghost Iron ore hovering around the 2.5-3.0g mark on many servers, it starts to look at being an option of investing some gold in Kyparite ore for now. Keeping an eye on deals that might arrive, or taking a larger effort to farm your own could become profitable in the long run.
We do not know what other tricks and treats will be brought on with future expansions, but planning ahead with picking up deals on Kyparite ore can add to your coffers and your profits.