The advise you got from the others is good.
Look at all your options before you make a decision which will affect the rest of your life and potentially your mates life.
The other area which you need to review is your family history of Prostrate cancer and affect. In my case, I was diagnosed at 50 but had 3 uncles who died of Prostrate Cancer at 54, 58 & 62. I chose radical because I needed options if the cancer returned for additional treatment such as radiation and chemo.
My PSA went from 3.4 to 6.2 in 6 wks so that and based on the very early results of my biopsy, My urologist said every was very early, I went radical route.
Any decision on how you treat has its pros and cons, you need to concern both short and long term results.
Good luck, there has been tremendous improvements in the last 9 years .