I've bought 12 week countdowns since I started in mid-July, and find they help me to keep going as I've already paid so feel I 'may as well' go, and also can't use not having some cash in my pocket as an excuse for not going. I also managed to time it so I got the summer offer with cookbook, autumn offer with winter cookbook and now New Year offer with free weeks etc so it's definitely been worth it for me each time!