No it hasn't. Chip makers need to eat and sleep indoors too and if 128GB chips sold for the same as 64GB chips (and what your strawman is actually saying is that 128GB chips cost the same as 8GB chips) they wouldn't bother selling both.It's been pointed out previously that 64GB and 128GB are the same price in volume
Which is ridiculous. Indeed. This is because the initial argument is false.
No, the reasoning is false because, after the first statement, every subsequent step along your "slippery slope" is nonsense. If "16GB is the same price as 8GB" that usually means that 16GB chips are selling in larger quantities as the smaller chips become obsolete. Beyond that, prices still go up with capacity.
Except Apple have been expecting consumers to perceive that since 2013 - eventually, that stops working.Consumers perceive 16 GB to be of higher value than 8 GB,