At its peak, Hinky Dinky operated approximately 50 stores. But Cullum was using profits from Hinky Dinky to support the operations of the Tom Thumb stores, and comparatively little reinvestment was made in the Hinky Dinky stores.
Hinky Dinky reached its maximum extent with approximately 50 retail outlets. Nevertheless, Cullum was using the earnings from Hinky Dinky to sustain the operations of the Tom Thumb stores, while minimal investment was devoted to the Hinky Dinky stores themselves.