Okay, I'm a little confused so please clear this up lol
You mention you had a TV before being used to display your game. Was this on console or a PC? I know this section is PC Gaming Forum, but I just want to make sure.
If it is a PC, what graphics cards are you using? That will justify if getting a 1080p (Newegg has a Nixeus monitor that is a TN panel; however is 144Hz 1080p for like $189.99 -- never heard of this brand however) or even trying to find a 1440p 60Hz that could fit in budget and would work better with your GPU.