From last year's dramatic decline in the unit price of LCD panels to the current uptrend in small screen products, high-quality LCD products still face significant challenges in entering average households. In contrast, sales of CRT monitors 17 inches and above continue to be strong as prices continue to drop. After months of internal market adjustments and reshuffling, with several top brands offering 17-inch products at prices below a thousand yuan in the retail market, the fully ripe persimmon that is the CRT monitor can no longer withstand endless storms and has finally fallen. Meanwhile, mainstream products are quietly moving towards 19 inches. In response to the current uneven quality in the CRT monitor market, the author has compiled some simple and effective purchasing tips, hoping to help those in need buy products that they will be satisfied with.