People purchase thing to express their motion or to fulfill their need not only material but also mental. And that is true more and more money was spent on their pet. Is that a wrong thing? I do not believe so. Because for them, it is the best way to spend their money.   Someone would doubt that, spend money on pets would not yield profits, so there are other more beneficial event for people to invest. I totally disagree with this claim. Actually, spending money on pets, there is some profit. Not the real money, but the motion. The pets could play a very important role in human's life. With pets, people would not feel lonely. Virtually, my father is living alone. Before, he felt lonely and nothing to do, just drank all the day. But after keeping a dog, his life obviously changed. He began to go out with the dog. And he said that the dog, XiXi, was just like a partner who would companion him all the time. Whenever he is sorrow or delightful. Thus, pets could surely bring some emotion benefits, maybe this kind of revenue is more valuable than the real cash.   What is more, people most time are reasonable. They could control themselves, which means that they could allocate their money where they consider it is necessary. Therefore, even people spend more and more money on their pets, they would think it is reasonable. Or they could not spend so much on pets. In their mind it is the best way to spend money. As we discussed before, paying for pets is a quite valuable thing. People's emotional need could be fulfilled by pets. If there is something really attractive, people would definitely spend money on it too. Think about when the market, let us find a certain category. Such chocolate, different chocolates, different band, people would always buy that they wish to buy and could buy. The logic behind them is that they have chosen what is best for them. Thus, the situation likewise fits the phenomenon of pets.   Actually, for someone who would not like to keep pets, spending more and more money on pets is unreasonable. Because they could not experience benefit the pets bring. However, for the man who keeps pets, it is truly a good deal and they definitely think that it is the best way for them to distribute their money.