It's been said already.
But it requires a lot of concentration. In return the keyer who suicides gets almost no experience. But quite a few people that can key a sub 30 only asks for 2M. Sub 35, I know someone that does it for 1M (90+ in all stats).
Chaotics are high in demand, and will be for a while. So they are getting a lot of customers, I know someone that gives his customers to his friends because sometimes he gets too much. He only charges 2M btw.
Most people are pures as well, or low levels. They cannot dungeoneer, or it would take them 3-4 times at least of what it takes if you leech. It's hard to find a team that would take someone below 100, let alone below 120 cb level. On top of that, the teams you would find would take around an hour to finish a floor.