When I was diagnosed with PC, I was still rather young (54). My PSA was 7.0 and my Gleason Score was 7 (4+3). I investigated a number of treatment options from Radical and Robotic Assisted Surgery, Radiation and (although it was relatively new), Proton Therapy.
My decision to have Robotic Assisted Surgery was based on the fact that I wanted the cancer removed from my body. Being an engineer, I was sold on the technology. The surgical risks were minimal along with a short recovery. It was also important to have the nerve sparing technique to help maintain sexual function.
Although my cancer has returned, I think I made the correct choice for where I was at that time. If you decide to do surgery, Robotic or Radical Retropubic, make sure you do your homework on the surgeon. Better to go to a "Center of Excellence" such as John Hopkins or Sloan Kettering (if possible). I went to Fox Chase in Philadelphia. Look for an experienced surgeon.