I grow Carnivorous Plants. In general, they're hard to find - and when you do find them, you only see the generic Drosera ("Octopus" Plant) or Dionaea ("Venus Fly Trap"). You don't often see the other kinds and variations. (There are hundreds of species). And then there is the misinformation about them - that they are hard to take care of, that you need a certain amount of humidity and yadda yadda yadda.
I think about growing my collection into a nursery every now and then. If I weren't programming, that's what I would do.