I just saw that Switch2 has a new promotion, and when I was about to buy it, I found that there was a discount on installment payments, which could save me 20 yuan without any transaction fees. Then I excitedly used my credit card to settle, but for some unknown reason, it was not accepted. I asked the customer manager and they said the card was fine. Then, after looking around, I realized that Switch2, which was 20 yuan more expensive, suddenly didn't smell good. 😂 I suddenly remembered that sentence, 'Be extravagant when trading, be frugal when living.'.