Breaker77 and Servitor 001 are saying thatt T2 BPOs cost more to manufacture with than invetion --

All invetion has a -4 ME (unless you use the decryptors which add millions to the cost and can even make the ME worse)
Then you have to add the cost of copying
Then you have to add the cost of the data cores
Then you have to add the rate of failure

T2 BPOs can be researched so they use less materials and they dont require all the incidental costs of invention.

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I'll give one example and tell me if I'm missing something.

T2 Veldspar minig crystals
Invetion takes -
Laser Physics datacore - 2 - Buy price in Amarr 185,000 apiece
Electronics engineering datacore 2 - Buy price in Amarr 210,000 apiece
For a total of 790,000 per attempt

The T2 veld crystals are selling for 60,000 apiece
Thats 600,000 for a 10 run copy

Now ignoring the cost of
Running the invention
The time spent copying
The cost of materials TO ACTUALLY BUILD IT
And the rate of failure wich would require MORE datacores

You begin with a 190,000 isk LOSS per 10 run print to even TRY to invent
With a 50% failure rate thats 380,000 LOSS before you add the 220,000+ cost for everything else

T2 BPO not even researched takes (THESE ARE SELL PRICES rounded up just for worst case profit on BPO)
28 Nocxium -- (482*28) 13496
1 hypersyanptic fiber -- 5000
1 veldspar crystal -- 15,000
and 1.5% of a R.A.M. Elec -- (45000*0.015) 675

for a total cost of 34171 isk per unit
60000 - 34171 = 25829 profit per unit
and profit would only go up if the person set buy orders and build thier own t1 crystals

So for 10 units like above there is a minimum of 258290 profit for ten units with a T2 BPO
And for Invention its a 600,000+ loss

THIS is why I want a DEV comment on this.
I don't know who is producing these crystals so I cannot say that it MUST be T2 BPOs.
MAYBE people are REALLY this stupid
MAYBE T2 BPOs are not being used to kill this market
MAYBE T2 BPOs dont have any affect on any items in the game and everything is fine.

OR maybe the current system is FUBARed, so the only step now is to figure out HOW we can address the issue and make the market fair for everyone.

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AS far as Ideas for solutions there are many ways to address it

1) Add datacores as a cost (relative to how many datacores it takes per unit with lvl5 skills) to T2 bpos and make them all -4 ME -- They would still have the benefit of unlimited runs and no invention steps to deal with.

2) Remove them from the game and pay the owners the isk values that they paid for them.

3) Remove them from the game and pay the owners some multiple of what the items cost on market or an approxamation of what they would sell for on contrats relative to past sales.

4) combine 2 and 3 and pay the higher value