lol, I was always told never to buy an optic that cost more than the rifle it was being mounted on, because the rifle probably couldn't perform up there with the optic. Nowadays, with almost every factory rifle being guaranteed around 1 MOA, that guideline doesn't really apply anymore though. I wouldn't hesitate to mount a CounterSniper optic on my M14, or a Nightforce on a bone stock R700.
Now, mounting one of those optics on an AK... probably not gonna happen.