I am yet to see a market place that accepts cryptocurrency in exchange for the purchase of goods and services.
So making cash available for users who one way or the other wants to purchase with their Digital assets direct is a welcomed development.
I think it would encourage user participation.
Here you go: Open Bazaar
https://openbazaar.org/It's like an amazon marketplace but you pay for everything with cryptocurrency. They accept bitcoin, bitcoincash, zcash and litecoin:
https://openbazaar.org/blog/how-to-spend-bitcoin-and-other-cryptocurrencies-on-openbazaar/Marketplaces like that would grow if people used them. Unfortunately everyone is of the mindset that they should convert to cash and shop in the traditional manner.