This is obviously correlation rather than causation, and it's understandable. For some people, they like iPhone because of the simplicity and better user interface, which is understandable. But for a lot of people that are technically savvy and won't have a problem using Android, having an iPhone is just a way of showing off that they are rich and have a lot of money. I know many people who spend extravagant amounts of money on expensive stuff just to show other people that they (or their family) is rich, when there are equally as good products available that are 1/2 or 2/3 the price. These people would be a perfect target audience for these expensive phones with gimmicky features.
It's sort of like getting a luxury brand car. You can get a car with the same features (you have to put in extra money for the options to match the luxury brand) for 1/2 or 2/3 the price... but you still go for the luxury brand because you want to show people of your financial status, and no other reason. I find that behaviour frivolous, arrogant, shallow, superficial, materialistic and juvenile, but each to their own.
When I go to the store I can find bread that is 1/2 the price of the one I usually buy. I guess I am stupid for not buying the cheaper one...being happy with the bread I normally buy apparently is not a good excuse.
That's not really a valid comparison - you're comparing a simple matter to something that isn't so simple. With the more expensive bread you might be getting better return on the money. With the iPhone you're not. An Android phone worth 2/3 of an iPhone may not have as nice a user interface or be very simple to use, but the extra money spent is not worth it to someone who is technically savvy and will have no problem learning Android. Once you get past that user interface or simplicity, there is no advantage to having an iPhone. In fact some Android phones come with better features, such as fully charging your phone in 45 mins, etc.
These simply analogies don't really capture the essence of why people moderate their spending even they are financially well off. Another example I've heard of is getting a big house -- why not get a small house instead. To which I say, it's worth spending money on the house because you're actually getting something in return with the bigger house. More space, more rooms targeted for certain activities, etc. The same can't be said about, for example, a luxury car which gives nothing beyond a fully loaded Ford or Toyota.