Vice itself has become big business in Nexus. Business which has it's own set of companies. People with a lot of money turned up at Nexus looking to impress their competitors and live large. People realised there was money to be made in offering clients staying in the market rich service, richer than their competitors. Lower classes of less prosperous merchants started imitating them, establishing their own services around residential districts.
"It's immoral to let a sucker keep his money."
Eventually Nexus grew into a fully fledged city with a complete array of trades and professions to support the populace. In Nexus anyone with a big enough purse can be treated like a king. And there are plenty of ways to get that much money and even more ways to lose it.
Nexus position at the confluence of three rivers gives it another role: it acts as a bottleneck for the drugs trade. All the drugs grown in plantations up country are funnelled down the rivers and delivered to the Guild in Nexus. From there they sell to suppliers representing countries from all over Creation. They grow opium, cocaine and marijuana like corn. Skullweed for brewing Bright Morning is collected by agents who are willing to dare entering the Black Chase. Word has it that the Guild sponsors graverobbers who loot tombs in Sijanfor artefacts and bodies to sell to the Deathlords and soulthieves who abduct powerful ghosts for use in making soulsteel.
The point the market became a city came when people started basing their enterprises in the market instead of their home towns. The sprawling 'market' began to attract it's own resident population. The first merchants to set up Nexus as their base of operations started their own 'enterprise' now known as the Guild.
