Comment by idoma

The market is incredibly small & illiquid - the main alpha comes from:

- a better knowledge & understanding of the market. What items are desirable? What will take a long time? How do you price them? etc.

- trust/reputation, which takes form through cash trading (directly buying items from people at a discount).

I also have a few automated trading bots & scripts that save time on buying items, but that's easily replicable.