Several companies offer cheap models of best 144hz monitor under $200 such as Acer, Viotek, ViewSonic, AOC and BenQ. Unlike premium brands such as Samsung or LG, the monitors that lesser-known brands offer are reasonably priced. What's more, they offer full warranty and great after-sales service. However, the wise choice would be to study and shortlist your requirement and wait for Black Friday sales event that would be celebrated throughout the country. For getting early access to the cheapest 144Hz monitors during this event, you should sign up on different websites.