When you say "Eotech style scope", do you mean a Holographic sight? or just a red dot sight?
I got my Eotech 512 used for 350.00. Well worth it.
I wouldn't suggest not getting anything by Eotech, Trijicon, Aimpoint or any of the other trusted brands. Cheaper scopes will work, buy they don't hold zero as well (I know from first hand experience). Now if this is just a range/hunting/fun gun, youre fine to go with the budget scopes and sights. If it's competition/self defense, save the money, get something that's been proven.