some people have said that buying the GPUs and mining with GPUs is a waste of money...

personally i think its a great idea as the case comes prebuilt with the motherboard tray and PSU mounting already done - the rest of the cases is scrap (and can be wieghed in for small change ) and at the amount he's hashing at the $75 on cases will be earnt back in 5 days it would have taken minutes to strip the cases down - i wonder how long it takes to build the 'custom' open air rigs that i see on here.

if only i'd had the same idea for my rig (i have loads of old cases)