I am new today to this forum. I have read over your questions and responses. I am also 41 and diagnosed a couple of weeks ago with prostate cancer. Based on my research, which is fairly recent needless to say, we have to get rid of the bugger! It is our best chance of being completely cured of the cancer. If we were much older, we would have other options.
Banking sperm for future children is a good plan. I worked in the field of fertility for many years and sperm freezing works very well for many, many years. You will also have the option of retrieving sperm from the vas deference if needed. You will want to be around for you future kids. I feel confident in yours and my decision. I have scheduled the deVinci robotics procedure for August.
Even though my wife and I feel good about our decision, I am very concerned about the side effects of surgery. It sounds like recovery will be quicker than open surgery, but similar side effects. This is where I need some reassurance from others. My doctor says there is not much I can do prior to surgery to help outcome. Any advice? Please keep me updated as you approach surgery next month. Be sure to discuss your feelings with you wife-to-be. I am finding out how important that is. I know the first week I was supporting my wife and family how everything will be fine. The past week, I needed the support. I was so angry about the situation and possible future effects from the surgery. I think the journey will be an emotional roller coaster though.