IBM's documentation specifies 10 years shelf life for the tapes in non-ideal storage conditions and 30 years if kept in stable temperature/humidity. Even the mo

IBM's documentation specifies 10 years shelf life for the tapes in non-ideal storage conditions and 30 years if kept in stable temperature/humidity. Even the most reliable hard drives only come with a 5 year warranty, so yeah, you'd probably want to double the relative price.