I have owned some more common and more docile species B. smithi. B.vagans, B. albo, A. avic and G.rosea for a bit, but I do not fully understand the attraction to the more aggresive species. Is it because they are "pretty," having nice color. Is it because they tend to be more rare. It is because people like the "evil" behavior of some of these tarantulas. What exactly am I missing here?