Bancor is a limit case of the Dixit-Stiglitz utility. Because inventories can never deplete, there will always be a mix. For two relays with similar connector positions, Bancor will always show the same consensus price, regardless of preferences. If the connector quantity of an asset drops, the Bancor price for the asset will soar. But what if the MM wants to take more risk and sell more of the asset, despite the low inventory? Dixit-Stiglitz lets the experienced market-makers show a more aggressive offer, should they believe that the price will revert to its mean. It gives market-makers more freedom.