I believe that it is worth it after 40.
Here a some reasons:
I would have been less likely to do CLL at a young age (late teens, 20's) because of the risk of permanent complications that could have ended up limiting my athletic ability, etc. and not being able to recover close to 100%, and therefore live the best years of my life in regret.
Mental maturity is something I lacked earlier in life, so I fear that I might not have been able to handle the mental stress that is involved doing CLL until recently.
At the age of 40, I'm not likely to begin training to become a professional mixed martial artist, or get involved in any other extreme, physically demanding activity......so If I were to lose some athletic ability due to CLL, it would not be the end of the world unless it would influence my "performance between the sheets".
At 40 I have a clear picture of what I want in life(and so should you), and therefore be able to make the right decision and live with it.
I read an insane amount of diaries in both forums. Some days I felt good about doing CLL, and other days I would question my mental sanity for even considering such a thing. In the end I have decided to go through with it.(at least today that is...)
The diaries are your best source for answers, and questions you might not have thought of yet....but be wary of the mental condition of the people writing this stuff, as we all come from different walks of life, have unique "demons" we are fighting, and in some cases could have ulterior motives behind their words.