OK, I'll state a contrary view. On a short range pistol used for deer, they're fine. On a short range shotgun used for deer, they're fine. However, unless you are doing dynamic entries, searching for jihadists or drug dealers, they're pretty much a waste of money on a rifle, in the no magnification format. If the game animals are close enough you need a zero magnification red dot "scope", they're (predators) probably close enough to be shot with a shotgun.
For big game and not so big game, get a variable scope with coarser cross hairs, turn it down to 2 power in those situations where a low power scope is actually useful, and you still have the ability to turn it up when the shots are likely to be longer ranged.
I had a TC illuminated reticule scope, tapered cross hairs on right, left and bottom, not meeting in the middle and a 3MOA? dot in the center, 4X magnification. Turn the switch on and it's red, off and it's black.
I bought it for use at night in hunting fox. Around here, red fox are notorious for hanging up at 100 to 150 yards. So, I put it on a Hornet, to get ready to put the smack down on them if they pulled that maneuver.
But, I decided to try it out first. I put a fox head size target at 100 yards, with two pieces of reflective tape to simulate the eyes. I found I could see the eyes well enough, but the dot covered up what I was aiming at. So, I changed the zero to be at the top of the dot, rather than in the middle. It still turned out to be a miserable idea. It was one of those things which sound great in theory, but fall flat on it's face in actual practice.
Tried the scope on my deer rifle, which worked, but still preferred the cross hairs. Ended up selling red dot scope to someone who didn't know any better. LOL
You may fire back when ready, Gridley. LOL