I believe they make 3-5% margin for a $30-$50 profit on the hardware in that example. They literally cannot afford that extra $15 unless they raise the price $1

I believe they make 3-5% margin for a $30-$50 profit on the hardware in that example. They literally cannot afford that extra $15 unless they raise the price $15 and then they have to worry about whether a value conscious buyer buys their slightly cheaper alternative. Keeping in mind this is for a feature that most people actually don't care about.