16 or 32?

Getting a new iPad next week. Would you recommend 16 or 32 GB? I have about 4 gigs of music, but i didn't even have that on my old iPad. I don't really have any videos. But if I ever found a way to get my.. downloaded TV episodes onto it that would be nice.

On the flipside I could use that extra $60 (with .07 tax) on a case; which would be nice. Opinions?