I agree, KM, but for pin-point accuracy, they are quite necessary for me, at least. I've always done well with apertures - especially on modern match rifles and my Sharps. One learns to put up with the placement. I had to make a 48" rod to clean the Sharps due to the sight not folding down far enough OH well, if it's accuracy you want, those are needed - for some competitions, that is.
For hunting, Express sights with a small front bead are best. The ladder sight is the best of both worlds, imho. Longer range than the normal available 3 leaf express sights, and almost as fast.
Do NOT believe anyone who says Express Sights are not accurate.
for example:
This is the rifle:

These are the sights.



The trouble is, with fixed open sights, even sight leaves as on this ML, usually only one load suites them.