Events TCO for the Database Administrator Simplicity. Peace of mind. Ease of administration. These are probably near the top of your wish list.
Talk is cheap.
Take a look at your business continuity plan. It might take 24 hours with conventional tape backup. To restore this 2TB database from tape, it might take up to two days and 20 tape cartridges. And your restored data will be two days old. That means your restored data will be only 30 minutes old.