Wii Warm Up: Back that data up

We know that a lot of you are running out of space on your Wiis, and many of you are using SD cards. We're curious, though, as to whether or not you like to back up your save files on them.

Because we're paranoid, and terrified of losing hours worth of data in games like Fire Emblem if our Wiis ever kick the bucket, we usually tend to put our files on our SD cards, for piece peace of mind. What about you? Are you equally as paranoid? And does it freak anyone else out that you can't back up your Brawl data? DOES IT?!? (Deep breath.)