Before you say it, no I don't sell BEs. I do have 3 of them. But I do still have a number of GPUs mining, too. Did I also waste my money there, too?
No because GPU's have alternate uses such as video display for a pc and processing power for gaming. They can mine alt-coins. They can run protein folding for cancer research. They also have a resale value.
USB miner sticks will be landfill...just like the huge box full of 8MB-128MB usb thumb drives I just tossed.