I will agree that in order for PS4 users to get the extra benefit they will have to pay a premium. (As SSD's are fairly expensive in comparison to HDD's) But size wise you are not limited by SSD as the standard harddrive on both the PS4 and Xbox One is only 500GB and 1TB SSD which are double that size and have been on sale for a few months now to average consumers (While 2TB SSD's are available to the not-so-average consumer at a ridiculous price).
- SSD's are also increasing in size every few months a bigger one so the gap will only be getting bigger over time.
I was under the impression that the OS footprint expands over time which is the reason why both Sony and Microsoft reserved more RAM for OS operations than they needed to for future updates and OS additions. And the thing that changed over time was the reserved RAM as they get closer to finalizing the console OS they give more RAM to games as the OS size is more definitive.
Yes, you can get large SSDs, but your still going to be limited vs standard hard drives. You can get 2.5" hdds with large capacities for much less. I haven't even mentioned if you through in the option to use an external 3.5", which allows for even more capacity at a cheaper price. 2.5" hdds are growing in capacity as quickly as SSDs are at this point.
But hey, I would personally love to buy a 2tb ssd and use that, its just not in my price range.
As far as the OS footprint, does anyone have any info on if the OS size grew overtime for the ps3 and xbox 360? I just assumed its size shrank or at least didn't grow any. Heck, MS has even beem able to shrink the size of Windows via various updates over time where they cut out non essential pieces or are able to replace parts with something that takes up less space.