Why is a 1 gig card better than a 2 gig? I'm just about ready to order mine (hopefully later this week!

) and I have both 1 gig and 2 gig cards. I figured I'd keep the 2 gig for me and give the 1 gig to my daughter for my old Palm I'll be giving her... but would the 1 gig be better? (I've got a little over 100 books ready to put on it, and they're around 100MB total, so I know I'll have plenty of room either way.)