Gardening: Thar be dragon fruit cactus growing fast and looming large

Imagine a cactus that grows rapidly in ordinary garden soil and whose luscious fruit sells at the supermarket for $4.99 per pound.
Would you want to try to grow that cactus?
I recently wrote about this plant and the dragon fruit that adorns its flattened tripartite stems. Thanks to your responses and the growing experiences that you shared, my knowledge of both the fruit and plant has expanded considerably.
Let’s start with Clotilde Dvoran, who gardens in Moreno Valley, just east of Rivers