My seven Ferox invention attempts came out of the lab with lady Luck's sense of humour obviously involved. I had 5 attempts at Nighthawks and 2 attempts at Vultures, and the two success I got were - you guessed it - both Vultures.
So there I was with six runs of Vulture command ships. Next step is to set up the spreadsheet to plug in the numbers and determine profitability.
Let's see...Ferox, Morphite, Ferrogel, Hypersynaptic Fibres, yadda yadda yadda, there! Cost to manufacture, about 155 million. Throw on the approximately 27 million invention cost and you get around 182 million. Seems about right.
I check the market: Ah, I see Nighthawks are going at 185 million so if the Vulture is going for about the same I should make a modest profit... Vulture... 135 million. What the....?
I double checked the numbers and booted over the Eve Central for a quick check. It no mistake: if I built and sold a single Vulture I would lose over 47 million ISK on the sale. Even if I ignored the invention costs I'd still lose 20 million just for buying the parts. Its insane!
I'm not sure what is happening to the Vulture market, if its a case of a slow moving product still going for pre-exploit-scandal prices or if its just too much supply not enough demand or what, but I really wish I had put in for 7 Nighthawk invention tries.
Lesson learned: had I done the homework before doing the invention, I would have known to avoid Vultures. I just assumed that prices would at least reflect manufacturing reality.