Re: old school attitudes to data erasure
> Is manually drilling or hammering thousands of drives really a cost effective method for destruction?
No, but then driving millions of miles a year isn't really cost effective either. However if you need to travel about 20 miles a day, it makes perfect sense.
For most normal people, handling a few hard-drives now and again, a hammer, drill or other mechanical solution is probably perfectly fine - 5 minutes, job done. Obviously if you run a business destroying drives, you need something more... efficient.