While not in the class of Aimpoint, if you have Astigmatism or are cross eye dominant, you might consider one of the old school Armson OEGs.
Astigmatism makes the red dot look like a comet for you, or maybe like a cluster of dots, but the Armon being fiber optic will not cause that problem. I'd like to find other non laser based red dot options that are Astigmatism proof.
I've been using one on my Mossy 590 and the guys on the skeet field cant figure out how my scores are as good as theirs with their OU Berettas. It's really because the Armson does not have a limited field of view.