Why iphones are so expensive?

They claim to have quality materials but one drop its all over with it. Anyway what justify the price. Some smart phones can perform the same for a less price (with similar features).Is it because an iphone is popular? The phone doesn't even have a radio FM, and has battery issues most of the time. I just don't get it.

Iphones are premium built phones and iphobe us more about quality then quantity

They want more profit, so they sell it at several times double the manufacturing cost through their marketing strategy. That's how they've become the richest company.