I am trying to decide whether to buy the 128 gig iPhone 6 or just the 64 gig. I have a 64 gig now and I usually have about 4-5 gigs to spare ( I juggle around movies for my daughter). I am just curious how many people are going to get the 128 gig phone? Is it worth it? I do like to keep a lot of music on my phone. Thanks!