I have successfully revived cigars that I neglected when I took a long break from the hobby (sat in a closet for about 6-8 years). I figured the worst case scenario was I would rehydrate cigars that turned out to have no flavor, but I was happily rewarded with some good smokes. It was a mixed bag of about 15 cigars, three or four of which were CC. I brought the humidity up slowly, and once I got it around 58% stuck them in the back of my end table humidor (kept between 62-65%) and successfully forgot about them for a year or more.

At a herf with @havanajohn and others, I had a RyJ Churchill that I purchased on my honeymoon ('98). Man, that cigar was actually really good...surprisingly so considering the years of neglect it went through. I remember others being okay to good, but my time and effort (which it didn't take a lot of either) was worth it, even if it was just for that one cigar (which it wasn't).

Good luck, and patience is a virtue! And in this case, so is a bad memory...forgetting them was the hardest part.