I purchased a small 'salvage' lot of Hrad drives on liquidation.com. That was the best $600+ ever wasted even worse I had to pay some $120 to get rid of the lot at my recycling center.
We got 30 hard drives the only 400gb had a short, the 200gb (4) were broken etc.. the only working one was a 20Gb you could sell for pennies.
Depending on lots, it can be: 'you pay for their trashes'.