Itās worth doing the maths. My iPhone 3G, 4, and 5 were on a plan with Vodafone. The 3G and 4 were cheaper on the plan, the 5 was about $20 total more over 2yrs than buying outright. When the 6 came out it was quite a bit more on a plan, and the plans started to be different between sim only and phone plans, so it made sense to buy it outright.
Iām not convinced Iām going to upgrade from the 6. I probably will in time but I certainly wonāt be queuing up overnight like I did with the 3G and the 4. The GPS and waterproofing of the series 2 watch is making me think again about the watch so that might be my first oneā¦