As one now engaged in the corpoate world, we do from time to time get the chance to practice glide approaches when joining overhead for visual approaches by setting a target of 1000 ft at 3 miles. With practice it is surprising how accurate one can get at hitting the target before stabilizing for a normal approach.
It seems to me that excepting the standby gyro, the angle of attack indicator is the least used piece of kit in our tool box nowadays - despite being the main one that we need to rely on when (God forbid) it all goes quiet.
During more mundane flights and training sessions I've witnessed crews searching manuals for holding speeds, drift down speeds, best glide speeds, ref speeds, best rate speeds, best angle speeds, and even whether they can climb a further 2000 feet at any given weight.
Do they no longer teach what the numbes on this dial actually mean, and how they may be used to provide instant and accurate answers to all of the above? I guess not..