Most retailers who changed platforms in the last decade weren't chasing a shinier user interface. They wanted control over specific things: how quickly a new promotion could go live, whether a checkout journey could change without a vendor ticket, whether an in-store process built for one region could be adapted for another without a twelve-month project plan. Control, in other words, meant being able to shape the platform around the business, on the business's own timeline. Most got some version of that control. Fewer of them checked what kind.