Many people take their valuations autonomously, plus emotional prices, such as what I've been saving for a long time or what I've been trying to do, but these are not true, and real prices tend to be very different. Like the old man, he was going to the dog market, selling a dog he had raised for years, but not to look at it, but it was a good look, and a lot of people were watching it, but it was unexpected that the dog was far too expensive for them.
At the time, the price of the newspaper was $900, which may not be a very good idea for people who often go to pet stores. After all, every dog in a pet shop is over $1,000, and it's no big deal, but it's a dog, and it's probably about $400 at market prices.
However, the elderly do not feel that their price is too high, but instead speak of the virtues of their own dog, and speak in a way that they are unstinting and spoiled, that they really like their own dog as if they were their own family. According to the elderly, because their children feel older and want to be near them, but they live in a neighborhood where they don't feed dogs, he decides to sell dogs, but he doesn't care about them.
In fact, for the elderly, his dog is worth 900, but others have no other feelings about his dog, so they're bound to be based on a normal valuation of the market, and that's why someone on the spot said that the dog wasn't worth 900, although the old man must not be comfortable, but it makes sense.