Doesn't matter the cost would at most go up by 100 bucks or so? The experience is totally different. Like how Apple goes for full SSD in their Mac series. It drive up the cost but the experienc eis different esp to the users who don't understand what's going on. They would think, Apple is better because of their system instead of attributing it to the SSD.
Apple is like a lifestyle, people usually don't mind paying more for it I guess. I look at PS4, pricing is like so crucial and most people usually don't notice it.