I started WW when there was a Points range (i.e., 20-27) so this was a no-brainer for me. It makes it easy for me to manage my budget, because I am not one of those people who goes out for a big dinner every week, so I don't usually have to "save up" for a trip to the Chinese buffet. Having not much of a life does have benefits! ;-)
Another positive is that you are encouraging yourself to eat every PP available to you, which is a good thing because you do not want to get too used to eating teeny tiny amounts. This will make maintenance easier and more sustainable as a permanent way of life and not a "diet".