This may come as a complete shock. but....some people don't pay 500k for color crystals.
I made about 2 million credits last week selling lvl 16-39 power crystals. stop crying about the cartel market and go make you some credits.
If you "400 artifice since March" guys never made money selling +41 crystals then you were doing something wrong. those crystals sold OUT at 40-45k each. i could never keep them in stock.
By comparison, I made 2.5 million credits in an hour selling one Dread Guard relic.
Re-read my post.
Edit: Just to by crystal clear I said, "never been a great profit making activity." You somehow turned this into "never made money"