Virtual payment facilitator model might be a beneficial solution for many SaaS and POS platform providers that want to provide merchant services. Virtual PayFac model is more lucrative that a wholesale ISO model and, at the same time, a virtual PayFac does not have to assume burden of PayFac-specific responsibilities. It can enjoy most of the benefits of being a payment facilitator without actually becoming one. Virtual payment facilitator model can be either a long-term solution or an intermediary option on the way to becoming a full-fledged PayFac.
A detailed description of virtual PayFac model is available in the respective article on Paylosophy.