Storage does not cut the mustard for me...
I got my first mbp in 2008, maxed out, costed a fair deal of cash, and I have been enjoying it since then... Fast Forward in 2012, the disk started behaving badly, so I thought it's a good time to replace it. The original one came with a 320GB-7200 disk; i ordered a Seagate hybrid 750GB and also ordered 8GB of RAM, plugged them in, happy days again...
Now, my main annoyance with these new rMBP is that 256GB simply is not big enough, 512GB is not even that much, max that out to 1TB and you are looking at a ridiculous price. Yes, I know these would be super-duper, uber-fast, but they are still ridiculous expensive. Also what people don't realise here

is that these new rMBP are not exactly user-upgradable--maybe I have gotten this wrong and the SSD is upgradable
People say that external disks are now cheap, but what I am supposed to do with that, carry a notebook and its disk around? I have an aperture library of 70GB and another one around 10GB (which keeps growing now). I have tons of music, around 60GB. What data exactly is a 256GB going to hold? The programs and the office documents? If you get a new computer, and you transfer your data to it, and you are already looking at more than 50% capacity something is wrong.
Let me predict the next big thing in the next macOS: roaming profiles, keep your home directory in an external disk.
Then it's the fact that it comes with the non-distinct GPU and has no DVD (which ok, admittedly it is dieting out, but quite a few people need it). On the other hand you do get a better screen and the latest tech...
I guess my main annoyance here is that there is no "cheaper" alternative, there is no 15" macbook or macbook pro without retina that would be a decent computer that you could upgrade yourself when needed, and keep it for quite a few years.
God knows now how many super drives (right now), and external hard disks (in a couple of years), Apple will start selling, because people will now choose the 256GB only to realise than in a couple of years they will need a bigger drive.
Apple here has taken out the 'cheaper' series and at the same time has taken out the 'pro' series (with the removal of the dGPU), and everyone now is forced to spend more to get what they want, and that's what annoys me the most.