Do you all think Apple will ever increase the base storage of just about every Mac to 512?
When 512GB NAND prices fall and stay consistently at what Apple paid 255GB NAND costs for then probably they'll switch. In short, they will switch when their margins take zero hit on making the move.
NAND production both hiccuped a bit over last 2 years ( like lots of other products) and the somewhat 'chessy' path of going to quad / quin bit data storage per cell to squeeze capacity while needed to do more tap dancing on wear management is probably enough to spook Apple into continuing to by the older , more consistent stuff for now.
That "now cheaper" factor has to apply to most of the other components also. For example when the MBA 13" M2 gets a more expensive screen. Poof! there goes the budget to increase SSD bill-of-material costs. So still suck at 256GB entry capacity levels. M2 MBP 13" gets a non-binned 8 core 10 GPU SoC. So again... poof goes the window to increase the SSD capacity level.
When the case design is "mature", the screen is not moving , the SoC doesn't have die size bloat, and SSD NAND prices are trending down at a steady state level. ... then Apple will raise the entry capacity. Until then... they just ask higher prices (and drop more money in the Scrooge McDuck money pit down in the basement of HQ )
So probably a couple of years into the future. If the component supply chains all catch up and even out next year , it could be the year after that. For now though... not going anywhere.