What is the most expensive storage medium?

While I was waiting at the grocery store this evening, I was walking around and went past their “office supply” isle… To my surprise they had a box of 10 1.44mb floppy disks. The cost was $4.99 for roughly 14MB of disk space. (I bought a 1GB flash drive not long ago at K-Mart for $9.99)… Interestingly right next to the floppy disks there were a 10 pack of 700 MB cd-r’s. They were $7.99….So a little bit of math:

Disk Size Cost for 1 disk Cost per Meg
Floppy 1.44MB $0.49 ~$0.35
CD-R 700MB $0.79 $0.001
4GB Flash Drive* 4000MB $34.99 $0.008
300GB HD* 300,000MB $79.99 $0.0003

As you can see the Floppy disk is still the most expensive medium around. What is funny is I haven’t seen a home computer/laptop in years that actually come with a floppy disk any more.

*- Represents prices of said drive from a local office store sale price for this week.