Not really.
iPhone 6s outperforms all competitors in single threaded performance. Not to mention the insane battery life, excellent camera, the Apple eco-system...
A 64GB iPhone 6S is 650$ on retail in the states.
A Samsung S7 is 590-670$...
Fact is, Apple products are excellent. They work well and are very user friendly. Whether they are the best is a matter of debate, but they are certainly market competitive, and the Apple "tax" is not as outrageous as it was before. In fact, I bought a MacBook Pro on sale for my girlfriend on sale for less than it's competitors at 2k$ when similarly euipped machines go for 2200$+
As for inflation, our dollar has been undergoing inflation for years now and the world isnt panicking. If anything they're getting more...