Root canal or extraction?

I've had a couple of root canals done without any issues. I had an implant done almost 10 years ago on an upper front tooth that had been broken at the gum line in a workplace accident.
The absolute worst pain, without a shadow of doubt that I have ever experienced was following the extraction of the broken tooth. Nothing I could take would ease the pain for 3 days. I have had a broken leg, broken ankle, and fractures of both wrists, not even close to the same thing pain wise.
After the implant, it's been absolutely fine, no issues whatsoever.
Worker's Comp was only going to do a bridge, but my dentist was adamant that an implant was the only proper solution. I was willing to pay for it out of my own pocket ($1800.00), but I appealed it and with the help of two other dentists I won.