I would lean the opposite direction. I switched from a Vizio TV to a 144hz ViewSonic monitor and the difference in gaming is night and day. It's not only a better image with better colors, deeper blacks, better looking sharpness and stronger brightness where it counts, but the ability to render up to 144hz is a gamechanger.

I never realized that 1080p60 would look better on a 144hz monitor than a television but everything is so crisp and smooth in games, it's honestly breathtaking with the right scene. I didn't realize that having a panel that can handle 144hz means that vertical sync is pointless, and for the games that I can actually render at 144hz, the effect is magical by comparison.

I find myself replaying more cinematic games (like say Witcher 3) on the new panel and it's like experiencing the magic of these scenes all over again for the first time.

I couldn't ever imagine going back to a television for gaming.