But cacading billing and using NATS aren't the same thing.

CCBill and Epoch now offer cascading as part of their standard offerings.

CCBill will handle all affiliate payouts, including sales that cascaded to other billers. (Epoch doesn't offer this service because Rand claims it's impossible.)

As Lee said, I think a lot of affiliates like the idea that with CCBill, you get paid by a third party, with checks sent every week.

And CCBill's software has had nowhere near the bugs and problems that NATS has.