Wow, thanks for your responses guys. I think MarkS his the nail on the head.. I too believe that collections change as your interests as a keeper change. I used to be very into crested geckos and have lately found snakes more interesting I also used to be very very into freshwater aquaria, but have gotten out of it as well. For me, I pick animals typically based on looks at first, but their behavior patterns are what keep me interested over time. At this point, I'm trying out individuals of several different species and based on how I like their behaviors and how they mature, I'll determine which ones I get more examples of and possibly breed down the line.