I have attended. About 20 years ago. One of the coldest and most unpleasant New Year’s Eves I ever had.
It's a bucket list thing; you've done it and you can move on.
The real trick to doing this is to be at one of the private parties inside Times Square where you get outside for 20-30 minutes to experience the hype, count down with the crowd, and watch the ball drop. Then you go back in to the warm building.