There was some talk recently concerning how to play the market and make credits in the World of GTNcraft. Lets leave dailies, missions, and Flashpoints aside and focus on Crew Skills and Crafting.
I ran some numbers over the past few days to get a baseline of Crew Mission cost to try and see how much crafting items was costing me, what is making the most profit, and when I should buy something off the GTN vs. crafting it myself.
My results will pertain only to Archeology, Slicing, and Synthweaving (since that's all I tested it on thus far). I'll do a Treasure Hunting one when I have more data.
Archeology
Washed - 1,415 Credits - Cortosis Substrates - Average Yield = 10 - 141 Credits / Unit
Tetan Mosaic - 1,485 Credits - Upari Power Crystals - Average Yield = 6 - 247 Credits / Unit
Endic Daredevils - 1,485 Credits - Primevil Artifact Fragments - Average Yield = 7 - 212 Credits / Unit
Slicing
Mysterious Funds + Whispers on the Net - 1,780 Credits - Average Yield (Data Module) = 4 - 445 Credits / Unit
Mysterious Funds + Whispers on the Net - 1,780 Credits - Average Yield (Advanced Neural) = 0.6 - 2,967 Credits / Unit
Synthweaving
Augment Component = 1,199 Credits / Unit (Estimated 25% materials returned on Reverse Engineering = 899 Credits / Unit)
Augment Kit = 11,082 Credits / Unit
Purple Augment = 14,268 Credits / Unit
Blue Augment = 4,180 Credits / Unit
So, this tells me right off the bat that my biggest money makers are (not surprisingly) Epic Augments. But it also shows how profitable they are when they sell for 75k (Weekday prices). Meanwhile, Blue Augments are still very profitable since they sell ~10K. Augment Kits sell for ~40k, making them attractive as well.
Please share some of your own money making ventures. =)