I absolutely hated my Vortex Strikefire. It seems like they pay people to say good things about them online or something. My lens was very dark, even in daylight, and the controls just sucked. Half the time I couldn't tell if it was on or just on an NV setting. Buttons are just not the way to go, especially if it is for self defense or hunting, because you don't want to fiddle with it for five minutes just to turn it on. And the stupid buttons were just like glued on to the outside of the scope, not even embedded like Eotech's. The simple knob on an Aimpoint is far superior to any buttons hands down. Plus the Strikefires come with a turd of a mount, so you'll have to spend more for a serious mount. Both Aimpoint and Eotech include an excellent mount.
Saving up for a proper red dot will cost you less in the long run, because your basically throwing the $200 away when you eventually upgrade it. You will upgrade, everyone upgrades.