You can spend your Gulden using the Android or iOS wallet of Gulden at any Bitcoin-accepting merchant, including Steam when they decide to add Bitcoin at their checkout.
Do you have a marketing strategy in place to let people know of all the services you offer? Lots of wasted potential if you don't bring your services to a larger audience.
Is any merchants using your Nocks payment system?
Gulden use Street marketing. People talk about it and some come to learn more, I don't think there is money for marketing but in the future who knows.