Market was big, and also the client. A lot of users ditched the client, and transitioned into the market, but not as substantially as you think. Honestly with a dying client, its going to lead to a reduction of the market.
> Unstable Client
> Reduction of Gold farming, not as many vouchers being sold for scripts
> Less GP Fluctuation
Also, while the client was big, and it was offline, there would be 60-80 people in chat asking what's up. That was a perfect opportunity to grab customers.
Market is dying as I noticed, not too bad though