They would be a lot more work than a tarantula, but tarantulas are basically pet rocks so that doesn't say much. You'd probably have to clean the enclosure every few weeks and turn over the substrate every month or two. You also have to have cross ventilation (aka large vents in the sides of the enclosure) because it requires a high humidity but will die if the air gets stagnant very. So yeah, you could keep them if you wanted to, but I vote tarantula as well. =) @Arceus They're eyestalks. If you touch them, they'll pull them back in to their body.