I stopped because it was just too awkward. Living with my girlfriend, it was annoying that we had to cook separately (she only believes in low calorie, zombie cardio 5 days a week). We could only go out to dinner at certain places, which got a bit tedious. And to be honest, I'd done pretty well, and was back to the sort of weight I wanted to be at. The toss up between the cost/awkwardness, and the amount of weight I still had to lose, it wasn't worth the hassle.
Though, if I ever need to lose weight again (hopefully never), I wouldn't even dream of anything else.