Well, with an acog or any scope that has illumination, it's possible to use it as an OEG.
If you get used to it, and practice with it that way, even some ridiculous magnification scope can effectively be used in point-blank shooting situations.
That's the whole ideal behind the BAC reticles on the acog models.
For me, I usually drop the dot low and right a few inches and at indoor distances I'm spot on like that. The only downside of the OEG concept is that you need to do pretty quick reactive shooting, and not give your eyes time to focus or you'll lose your zero.
Right you are. But if you don't care to have magnification, you might not want to spend the extra $700.00 on the ACOG over the aimpoint. (of course you can always put on a flip up magnifier.) I really like the smaller profile of the Micro as well. It really comes down to what you are after. I use an Aimpoint Micro on my main AK, as it is my goto CQB gun. I am considering an ACOG 3X for my AR, but can't decide.