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Apple is right on schedule compared to their relevant competition. They wanted the top chips from Intel and in sufficient quantities to ship immediately upon announcement. The OP and several others on this thread don't seem to comprehend how the production scale operates for a company this large.

I was realistically hoping for one of the two between IGZO and TB2. While I understand the recent iMac folks frustrations, it is nice for Apple to add a little something extra to a product that is at least called Pro and priced like one.
 
There's a building in China with Foxconn stamped on the side of it. Dump trucks filled with capacitors and screens go in one side, and finished Macbooks plop out ready to go on the other side. Magical Chinese elves probably do something in between all that. On the side of the factory is a dial that goes from 0 to 1 million and evil Tim Cook held down that dial at zero for four whole months!

Substitute Tim Cook for the CEOs of Nintendo and SONY for the Wii and PS3 or whatever new product is being held back this holiday season for some nefarious reason.

I can imagine how it went.

It's the day before the 2013 WWDC. Tim Cook is in his office, sitting in front of his computer. The computer is the yet-to-be-released 15" Haswell rMBP, and he's literally sitting on a pile of them.

On his screen is Safari, with a familiar looking page open. Oh, it's MacRumors forum! Hes scrolling through a thread titled "Waiting for Haswell MBP Mega Thread". He can't help but feel a bit smug reading through some of the posts. Such eagerness, such joyful buzz and anticipation! And at the tips of his fingers he has the power to make these poor bastards' dreams come true.

With a sudden sinister smile he opens Mail.app, and starts to write. The recepients are Phil Schiller and Dan Riccio. The message consists of one word only:"Delay." Tim clicks "Send", and with a widening grin on his face leans back, balancing on his pile of MacBook Pros.
 
The chips they used, with Iris and Iris Pro, haven't been available that long in significant quantities. That's probably the big point there. While Haswell came out quite awhile ago in various forms, the right chips in the Haswell line took longer to make it to market to be used in the rMBPs.

Another consideration, whether you individually may use it or not, may have been Thunderbolt 2. On a $2000+ machine, it's not unreasonable to expect those buyers wouldn't be adverse to buying Thunderbolt devices. It's a pro interface on a pro machine.

Then once you waited so long, you may as well release it with Mavericks to get more battery life. Given the small battery improvements posted for the 15" (+1hr), it's possible it was going to lose battery life on the Iris Pro + GT750 model without shipping with Mavericks.

As others have mentioned, competitors have the same problem. Lenovo isn't shipping much in their ThinkPad line as of yet with Haswell, the new XPS 15 isn't out yet, etc.
 
Sorry, but you're an idiot if you think all it takes to introduce a new computer or chip is to simply go on stage and announce it. If Apple had a time machine and could just go into the future to pick out already made products to bring them to the present, yes, that could work; but what you don't see are hundreds of thousands of hours of work to coordinate with chip manufacturers, internal design team, R&D, manufacturing, etc. to bring a single idea, or any idea into life.

If you're gonna troll, go troll on the other conspiracy forums where people spend their entire existence hating on things.

No intention of trolling at all. Was just curious. I apologize, because I did NOT know these processors were only available in Q4 2013. Thanks to another poster who posted that out.

I understand now why they waited. The wait would have been silly if they were planning on introducing the haswell processors that have been out all year.
 
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