In most cases the price is determined by what the market is willing to pay. Think of a consumer that goes out of their way to buy $29 Apple headphones. Clearly

In most cases the price is determined by what the market is willing to pay. Think of a consumer that goes out of their way to buy $29 Apple headphones. Clearly they have decided this specific model/part is valuable to them for whatever reason. I'd say in general it's not any different than other companies that have a trusted brand and good retail distribution. For example I had to order a replacement charger for an HP laptop a couple years ago and it was about $90. I bought it just because I've had bad luck with generics in the past and I was willing to pay more for the original.