I've not done this but try to measure the outage costs. Even then you don't have it all covered but it's a start.

The objects of the business impacts where you can't put a price on

 Legal/Regulatory

 Life-threatening issues in hospitals, for example

 Reputation

 And so on…

Look into risk assessment too. This should clarify some things as wel. A risk assessment is an important step in protecting the business. It determines various natural or man-made threaths that can disrupt processes in the organization and its facillities. A common misconception is that most threats to continuity are a result of natural disaster. Statistically, these threats account for less than 1% of IT service unavailability. That leaves us with 99% attributable to other threats. It's more important that you protect yourself against man-made threats. Focus on those too

Thanks Mike. These facts that you have written reminded me that I did not write all the story in my question.

So, Those two VPLEX Local are connected with RecoverPoint for Disaster Recovery, so all your statements are valid.

Question is if there are some business pros for changing RecoverPoint to VPLEX Metro.

Be aware VPLEX is an Active - Active environment. For example: If at one site a database corruption occur it is synchronized to the other site as wel. The power of RecoverPoint is you can go back to whatever your retention policy is. Same example as above but you can choose till which point in time you would go back too. This can be minutes hours and so on. So, VPLEX is mainly for Site failovers and therefore Disaster Recovery while RecoverPoint is more a restore function