I am looking to use Magneto to sell digital photographs as these photographs generally only sell small about - its not really feasible to use a payment gateway to process these transactions, as the cost of making the transaction will be comparable to the profit on the item.
As a result I was thinking about a credit system - where the user would buy $10 of credit via a payment gateway - which would correlate to 1000 store tokens, that could then be used to buy photos, and purchases could be managed internally without involving the gateway.
Other than Magneto Enterprise - is there anything out there that does something like this?
Or would this be particularly hard to develop? - Could have a middle tier in-between gateway and magneto that manages tokens?