How does Artrade sustain itself?
Artrade earns revenue through a commission of 0.22% on all $ATR token volume on decentralized exchanges.
Also, Artrade is not directly purchasing the items. The items are purchased with the DAO wallet, which is an inital $ATR supply attributed to this purpose.
So in practicality the items are purchased by the $ATR community.
While fees payed by traders on decentralized exchanges are used to develop the marketplace.