144Hz is good for gaming and is a very popular refresh rate for gaming and is even better at providing a significantly smoother and responsive experience over 60Hz refresh rate whether for gaming or other general purpose use.
I have a 144Hz monitor and it works great for gaming.
I find it much better than the 60Hz refresh rate.
A good 120-144Hz monitor is good for image stability and gaming. More than this they are only marketing numbers.
A good VGA is that one that is able to stai around 120Hz with your monitor resolution.
A 144hz display by far outperforms a 60Hz and 75hz display in all areas.
Whether you are a normal desktop user, a casual, or a serious gamer, the jump up from 60/75hz to 144hz is noticeable.
Everything from mouse movements to gaming action is much smoother.