If we compare them to tapes, it doesn't seem fair that the hard disks should be kept spinning, booting them up on demand still gives you vastly lower latency th

If we compare them to tapes, it doesn't seem fair that the hard disks should be kept spinning, booting them up on demand still gives you vastly lower latency than tapes. Me feeling is that the competition in the tape market is also a bit rusty, $3000 for a fancier VCR, what a steal! ;-)