I received an iPad 16 GB for my birthday. I was very thrilled about my gift, however, I have not taken it out of the sealed package yet because I am not sure if I want to get the 32 GB one instead. I don't really download movies too much, and I have a great iPod for all my music. Is it worth it to get the higher capacity iPad? I do want to download photos, PDFs, and ebooks on it. Please advise.