Seriously, does anyone backup to tape anymore?
Yes, people still backup to tape. LTO4 tapes are: 1) cheap - 1-2TB encrypted compressed for about $35/tape (cheaper than a Fry's disk!). 2) Easy to keep for a long time (I can keep a backup for 2+ years. That can be hard (or expensive) to do with a disk-to-disk based solution. If I want to use disk-to-disk and keep, say, one monthly backup for a year, I need at least 3-4x the disk space in my local disk-to-disk solution, and another copy in a remote location - 6-8x my disk space total. That costs a lot. Many people still use tape and will continue to do so.
Any circuit design must contain at least one part which is obsolete, two parts which are unobtainable, and three parts which are still under development.