Hello! İ've been using a monitor of 1440x900 75hz moniyor for a long while( about 5-6 years) and i'm thinking to upgrade it to a 1920x1080 60hz, but i'm not sure if it is going to be worth it because of it's "hz" rate. At this point is it better to continue with the old one or buy a new one? And i'm mostly going to use it for gaming.