Someone I know (not me) sent me an in game mail, railing against excessive market prices. I have suppressed who, what and where, but the sentiment applies regardless of those things.
So, we had a decent hisec connection through our not busy c2a, so I was thinking of bringing in a bunch of ...stuff.
As I was browsing the necessary pieces, I became angry at the massive margins in ... both trade hubs on all the pieces I was about to buy, both over production cost and between buy/sell orders ( basically, buy orders at production cost, sell orders 40-50% above that).
My response was to start plotting how to free up enough capital to buy the necessary BPO's to produce all those pieces myself, and then to produce the same pieces to sell at those margins.
Then I realised that's my market-finding process, and had to laugh.