The weight of the AK-74 is roughly 8 lbs. Considering scrap metal prices. It's worth $1.50... That's what I am willing to pay for a firearm that will never work. But that's just me. It's like buying an authentic "deactivated" $100,000 sports/luxury car. It looks great in your driveway and you can open the doors, sit in the seats, play with the switches and pretend to drive. But it will never drive. Just sit there to be viewed and fondled.
If you want a cheap replica then check out the SOF magazine. They sometimes run ads from a place that makes resin and metal replicas. A whole lot cheaper.