They're just a slightly smaller than usual Children's Python with a slightly different pattern with smaller clutches and smaller babies (nastier to get feeding). I don't know what the hype is about. A particularly large one is about the size of an average Children's. They grow much larger than the minimum breeding size for regular Children's Pythons, sometimes over a metre (regular Children's can breed at under 60cm). Cool snakes but give me a regular Children's instead. When you could legally collect them people often didn't even recognise that they were anything other than a local variant of a Children's Python, so one one really bothered. Now that they're rare in captivity people want them.
A fair few have been illegally poached in the last two or three years. These should be producing reasonable numbers of babies, so the price should drop before long. I imagine they'll be worth less than regular Children's within 10 years or so. It's only a small number of people who would appreciate them, and once all of them have a pair or two their value will crash.