Eye relief / eye box. Having a super bright dot doesn't do you any good if your head has to be juuuuuuussssst right to be able to see it.
FOV. The more expensive models have a FOV in excess of 100' at 100 yards. That's become the standard that I look for.
+1 on both comments.
The Strike Eagle is a decent, but bulky scope; SWFA 1-4 isn't bad but it is just OK, not as good as Leupold, on eyebox.
Next scope in this range for me will be a Leupold or one of the Primary Arms scopes; I like a top end of more than 4x as well.
MM
