In theory, I would agree with the 'poopsicles' are better. However, we have a concrete based run/pen for our furbaby. ANd when it gets below freezing, well...it's stuck to that cement like 'white on rice' so to speak. Man is it hard to remove. You have to be there right after the, ah..'event' to be able to move it. It is waaaay to cold here.