Know your limits. You can get burned out fairly quickly if you spend a lot of money in a short amount of time, and you find yourself with more animals than you can take care of. I set a number in my head before I went all morph crazy. I'm very close to my limit, and it'll be interesting to see if I stick to it considering that show season is starting, and the 2011's are popping up. I've got room for just a couple more, so I'm going to be extremely selective in what I want to add to my collection.
Mark