Is 144Hz Gaming Monitor Worth It?
Getting a 144Hz gaming monitor is like something you can't get back from. Because of how it changes your gameplay and how much it affects competitive gameplay. The difference from a 60Hz monitor is really significant once you've tried a 144Hz monitor.
Bear in mind to fully get the benefits of a 144Hz monitor you should also have a same tier CPU/GPU and that can keep up with the monitor's refresh rate.
Overall, if you want to play competitively, having a 144Hz monitor can greatly increase your chance on having a great performance.