I can't speak for anyone else on this site, but if you read enough stories, a common theme emerges: I wish I had done it a year (two years, etc...) earlier. Like you, my pain would come and go. In general at the time, I would have 2 to 3 weeks of constant, droning pain that kept me from sleeping well and never left, followed by maybe a week of no pain. The only reason I had no pain is because I would be sedentary for those 2-3 weeks of pain, so then it subsided. So, of course, I would be active for a week, and then pay for it for another 2-3 weeks. In fact, I ran 4 pain-free miles the day before my surgery! Talk about second guessing your decision.
You have to ask yourself if you'd like to have your old, active life back with no pain. That's what you'll get. Plus, Dr. Gross, Lee, and Nancy are just the best. He did both of mine. One 9 1/2 years ago and the second about 8 months ago. I'm working out like a fiend already. No pain (but still range of motion issues until I fully recover, which in my experience is about a full year).
I'm sure Dr. Gross discussed it with you, but after a certain age resurfacing is no longer an option. I don't know what the age, but the older you get the lower the percentage of good outcomes.
Good luck.