I will be upgrading this Summer, but I thought it might be helpful to hear from some current rMBP owners regarding the amount flash storage they chose and why they did. I currently am working on an iMac with a 1TB HDD, that's about 75% full. Consequently I'm gonna have to change the way I manage my files. The obvious choice is just to buy a USB powered external along with my new rMBP, but does anyone regret not shelling out the extra cash for more flash storage, despite the price? Some context: Most of my work will be Photoshop and light editing in Final Cut (1 simple 5 minute clip each week). About 40 GB of iTunes Music. 80GB iPhoto. I like to have access to all my archived design files incase I need to recycle some assets... but I don't see foresee a reason why these files couldn't sit on an external hard drive as opposed to the flash storage.