Virtual Currency for Buses

I worked on a project recently that was a bit different than the norm for me. The website is a directory of new and used buses for sale. In addition to buses, they also list limousines, motorhomes, trolleys, parts, and even have an employment directory. The business charges for some listings, but not all types. They also charge for certain enhancements to a listing. A few more dollars to add a few more photos for example.

We decided to create a virtual currency to help people purchase and renew listings. It is called BusBux. The idea is they can buy x amount of BuxBux and use that to renew listings, add photos, etc. This way the only actual credit card transaction is the purchase of BusBux, not for a $2 photo addition, or a small renewal every month. This adds quite a bit of flexibility in pricing for the client and end user.

Virtual currency is a hot item in the online game world right now. How soon until it makes more of a foothold into the general business market?