Any previous mac hardware could have had its cost justified since it added a new configuration, killer feature (retina screen), better battery life, fastest SSD, etc. Sure, there were always cheaper options. But pound for pound macbooks were always best in class and had their cost justified at the end of the day.
This is the first time a laptop is released with a processor that's as powerful as the ones 5 years ago. It had all its ports removed. It weighs 1 pound lighter than a perfectly good MBA, which is already very light for those who care. In short, it adds nothing and costs $1500. I still have no idea why you'd get this fashion accessory when you could get a real, powerful laptop with the retina 13" MBP.
All we wanted was a Macbook Air with Retina display. Apple over-designed this one.
I think the price is playing a major factor compared to what you can buy a MacBook Pro for as compared to performance.
This is what I think the thought process in developing this laptop was, and why it (including the price) makes sense to me:
They could have taken a 256GB 13" MBA and added a retina screen. But that retina screen would have bumped up the price and bumped down the battery life and you'd have ended up with the same price but bigger/heavier rMB with faster performance and more ports. (Note that the rMB starts with 256GB configuration; the MBA and 13" MBP start with 128GB. So the 256 GB 13 MBA is actually only $100 cheaper than the rMBsomething that critics seem to not realize.)
This may be what some people want, but the thing is, that price/performance/portability configuration would have been very similar to the 13" MBP. And at the same price, the 13 MBP would have had much more of an advantage over the new retina MBA since it would have had a much more powerful processor but only slightly less portability (MBA 1.6 ghz at 3 lbs., MBP 2.7 ghz at 3.5 lbs.). The new retina MBA would have had too little reason for existing. They couldn't just drop the price obviously, so in order to make it offer something truly different than the MBP line, they had to go all in with portability. But of course that would require a sacrifice in another area: either higher price or lower performance. It was already too expensive, so the sacrifice had to come from performance. And to get a truly special level of portability, they had to go extreme and use a mobile fanless processor, and also take out ports. As long as they could get enough power out of it to easily handle basic consumer tasks, they felt they had a worthwhile product.
So the laptop, the price, and target buyerit all makes sense to me.
Its not for pros. Its not for prosumers. Its not for gamers. Its not even for consumer tech enthusiasts (people on MacRumors), as they tend to care about processing power even if they dont do anything with it. Its for non-techie people who check email/facebook, web browse, chat, edit docs, stream music and movies, use itunes, take pictures here and there, and dont have or move around hundreds of gigabytes of files. Those people do exist, and some of them will pay that premium for extreme portability. And it will be fast enough for them, and they wont miss the ports. If thats not you, this product simply isnt meant for you. I know its not meant for me.
Which leads me to think that with this move, Apple is essentially splitting the MBA market, pushing some people down to the rMB and some of them up to the 13 MBP. And who knows, they may also keep around the MBA (non-retina) line, as a low cost option.
If anything, I see the new keyboard being the real potential deal-breaker, even for basic consumers who ARE the target buyer for the rMB, since it seems like some people are simply unable to get used to the keys.