Apple :: Backup Medium For My Server

We have a server and 10 iMac workstations.

My concern is twofold
1. because these tapes are proprietary, if the drive goes down, the tape can't be read by any other machine. I had this happen a couple of years ago when the tape drive broke and because it was discontinued, I have all 5 daily tapes that could no longer be read and cost almost $100 each. Luckily I have never had to restore from a tape, but if I did, I would have been out of luck.

2. The cost. These drives are expensive. Would it not make more sense to have a couple of 16gig USB flash drives to rotate through. They are more portable and I can do a restore on any networked machine.

Or we can simply do a backup to a networked drive. I like the flash drive better than the last option because it can be moved to a safe part of the office to protect against a water pipe burst or something like that. the total data requiring backup is just under 1 gig