Yes, I have heard that advice before. But (no disrespect intended) it seems overly simplistic to me -- as if it were either 100% one or 100% the other. I suspect it rarely is.
I would be retiring because (1) I do not particularly enjoy my work; (2) I have worked very hard for 25 years; (3) I live with too much stress, and I don't think that is good for my health; (4) work is not going so well for me these days (even though I am making a good amount of money) and I find showing up every day, when things are not going very well, depressing; (5) I have enough money that I do not think I need to continue to work to save more money; and (6) while there is nothing that I have a burning desire to do, other than travel more, I am pretty sure I can find some things to do that I will enjoy, including taking some classes, reading more, getting in better physical shape, and probably moving to a place that I would prefer to live rather than where I live now.
So its not like I would be retiring because there is one particular thing that I feel an intense urge to do. But things are not great now, and I have enough money, and so I figure I might as well try to eliminate something that is causing me stress and unhappiness, and improve the quality of my life.
I am not likely to pull the plug immediately, but thinking in the next two to six years.