I'm a recent convert to Wacom tablets. I have no idea why I didn't buy one earlier. The pressure sensitivity of the tablet and stylus when used with tools such as brushes and the eraser, allow me to do much more precise adjustments. The quality of my post production results have improved dramatically. (But then, I like doing a lot of PP. If you're a straight out of camera shooter, this might be less important).
FWIW, I purchased the tablet after watching a couple of YouTube videos in which a photographer, Terry White, showed how he used it for portrait adjustments. It was one of those - "Wow!...you can do that? And so easily?" moments (As anyone who has ever struggled to do really fine, small adjustments with just a mouse, can appreciate). Since then, I've come across a number of other videos to help refine techniques. Not being a professional photographer, I'm out of the loop when it comes to the equipment that many people use. But I'm surprised that you don't see more people recommending tablets.