So the guy bought gigbucks from you?
Regardless, what I was getting at is that there should be a higher LTV (life time value) from having a customer interact with gigbucks, whether by listing or buying services, than by shipping them off to a CPA offer or an AdSense link.
For example:
Let's say a guy comes to the site looking for back linking services, he looks around and finds a vendor and a transaction occurs. Say the site owner makes a $2 commission from each transaction. Now say on average a customer participates in 4 transactions (he comes back ever few weeks to buy more back linking services), over the lifetime of that user his LTV will be $8.
But say instead you have a CPA banner for an eBook on "Build Backlinks for Free!" from clickbank and you get a $7 commission per sale. The customer gets to the site, sees the banner, clicks, and buys the ebook and never returns to gigbucks. By shipping the customer off to clickbank the gigbucks owner makes $7, 1 buck less than the average amount of commissions that would have been generated had he participated in the gigbucks market place. The LTV of a visitor that leaves via an AdSense link and never returns is probably going to be even shittier.
The guy that now owns gigbucks is going to have to figure out the LTV of his visitors via the market place and then weigh that against the value of shipping them off elsewhere, any advice without knowing the LTV is speculative.