I got talked into an extraction rather than a root canal by a dentist i n this situation. I'd only been to him once before, for a check up, having changed from my previous dentist who I didn't like.
He thought it was going to be an easy extraction and that the tooth would just pop out... It didn't, but he'd started and was damned if he wasn't going to finish. He'd done the usual puff about me being able to stop him at any time if things hurt or I was worried etc by just putting my hand up... I did a couple of times when it was painful and I wanted more injection in (he said it would be completely numb and it wasn't - should have been a warning sign!) and when I put my hand up a third time because I could feel him pressing his instruments he was using to extract the tooth on the next tooth, he didn't stop, he just kept saying he couldn't stop as it was all taking too long as it hadn't come out easily. I tried to talk but obviously couldn't with a mouthful of fingers and gumpf. I tried waving my hands more but he still didn't stop.
Eventually the tooth came out - but not without a massive crack, which turned out to be the tooth next to it, which was fine, but has had massive problems ever since 
It also wouldn't stop bleeding which he didn't manage very well. Turned out he had 2 surgery rooms set up - would do one patient, then the other patient would be waiting in the next room ready to go, while the receptionist had settled them in. he left me in the one surgery, struggling with the bleeding that didn't stop, because he was doing the next person's appointment and his worry was more that I wouldn't be out of there in time rather than that I was still bleeding.
I have now found a new dentist who I've been with for a few years and he's fab. Wish I had had him when I had my abscess/extraction before. And he's retiring soon, worrying already about what the new one will be like!
In contrast, have had a couple of root canals, they were pain free and so much easier in comparison.
WHich is all a long way round to warn you that extraction isn't always the easiest route to take!