ESPECIALLY if you have little kids. I don't have kids, but I upgrade on release day every time, and have for years... but I have a lot of family and siblings with kids, and while they try to be careful with money, they often use their phone for many years in a row. (I hear that kids are even more expensive than an Apple addiction) But phone cameras are getting so much better with every release, and since phones are becoming more and more "THE" family photographer, the sum total of your family photos will, one day, be only as good as the phone you had at the time. I feel bad how at least 90% of my sibling's photos of their kids were taken with flip phones (they fit into that particular age group), and how half of those were lost everytime a phone got wet. And even as the big-spending uncle, the photos I took with one of the "cooler cameras at the time" are with Sony Mavica floppy disc cameras. I have a few sets of photos where I filled up a WHOLE DISC on one trip to the park- whoopie dooo. That's 24 grainy photos, where now on an iceream run I get my phone back from the nephew who stole it and I have 200 high quality photos of the inside of their ear, nose, the ceiling of the car and the back of my head. All with no effort and the few good pictures they happened to take by accident I keep because almost anything will be fun to look at years later. Anyway, if there are any people out there who are on the fence about updating their phone and who have kids (ESPECIALLY little ones) I highly recommend you get a new one just so that in 15 years the zillion photos and movies you've amassed of your spawn are even 10% better quality than they will be otherwise. So while the jump from a 5s to a 6s might not seem that huge, in 20 years or so you will be glad for every 5% improvement of the photos (not to mention newer options like the chance to file away a panoramic photo of the livingroom they distroyed with toys everywhere, or whatever new features that will come out in the future like live-photo and so on). Those are the photos that are worth the most as time goes on, and after spending a few hours transferring a few more photos from floppy discs (I do a few every other day or so) trust me, you will be glad you did. If you have a pretty nice point-and-shoot or even a DSLR then even more so, because while you THINK you will have better pictures because of those cameras, when you look back, at least 90% (If not 99%) are still going to have been taken with your phone.