I remember all of those products seeming really expensive at launch, though I see your point. They've all gone down a bit in price since but not significantly. Maybe what has changed though is my perception of what a reasonable cost should be. Spending $150 on AirPods to replace my cheap earbuds used to seem absurd but now it feels more defensible. If AR is a huge success the price will certainly come down, but perhaps only 30%-50% and spending the equivalent of a new Macbook on a headset starts to feel more reasonable.