I know tanks are a bit more work but I do enjoy watching them. I like to watch to see if there are any issues with aggression too and take care of that right away. Can't really do that in a rack system. I may try a small rack system at some point to see how it compares to tanks, maybe once I expand my operation. I used to clean and bleach everything every week, boy was that a pain. Now I just do that once a month and every week just replace the bedding, that's so much easier. It's also easier with sliding tops on critter cages compared to other tops.