Here’s a scenario that plays out too often:
ISO gets locked into a payments processing deal with a minimum. The processor doesn’t have the right solution or consistent service for the type of merchant services business ISO is boarding.
They end up sending business there because they have to, not because they want to.
Or, maybe the processor is great, but the ISO has underestimated the effort required to meet the minimum and ends up having to cover the difference.
There are great processing arrangements out there without minimums.
Do your homework and spend time to shop it.
But remember, picking the right one goes much deeper than cost.