First of all..best wishes at a time when you all should be looking to a ride off in the sunset/retirement...based on what you say, even with a smooth dre and biopsy negative, more or less, ..there is "something going on" as some Dr's like to say....watchful waiting may buy 3-4 years of some comfort but, statistically, the psa numbers are just too high to likely avoid trouble in a few short years....you actually may not know "what" is going on without removing the prostate & maybe 30 lymph nodes...at least in that cavity....if your Dr's advise such...a bad "cell or 2" might be out there lurking and trying to find a home...there are, of course, other possibilities for treatment...but getting rid of the source probably is the most likely way to "know"...and may buy many more years of comfort than 3+...I have been involved for 20 yrs as a lay person in different ca's and was ......(edit problem).....
shocked at 62 to hear the ca word associated with my prostate..anyway, after studying 10,000 blogs & med journals & plus having the very best Dr's in the country advise/do the work (VA contract university Dr's)..I did the above a year ago and have non-detectable psa's.."knock on wood"..anyway, its all a personal choice but you all may want to explore removal and your Dr's advice....best wishes....