One big difference here is that if you decide to dump Apple, you can resell your overpriced iPhone on the used market to get a good portion of your money back.

One big difference here is that if you decide to dump Apple, you can resell your overpriced iPhone on the used market to get a good portion of your money back. You can't do that with razors. The main problem with dumping your iPhone is, as you pointed out, all the software and online services you might be tied into. That's where most of the lock-in is. People who avoid all that crap are in a much better position because they can switch phones easily at any time.