I realize that, but if I had self-control and willpower, I wouldn't be in this situation of needing to lose weight. I need to have a weekly weigh-in and to be accountable to someone - otherwise, I find it easy to say that "I'll start tomorrow." Plus I really enjoy the applause I get at the meetings for each success. The online tools really help keep track of what I'm doing and give me great ideas for recipes, exercise, motivation, etc.
This is well worth the money I'm spending.