>an increase of only 72GB
>not even a exponent of 2
>costs four times as much as the next thing down
Why is this okay?
It's because it's convenient, regular consumers would rather pay 4x more for double the storage than have to switch out cards. It's the same as people ordering takeout and tipping the delivery guy $5 instead of using a few cents of gas.
Thats it, you and me after school, we are gonna fight.
Presumably because they couldn't manage to produce 256 GB chips with high enough yield to be viable, yet were able to have enough 256 GB chips with 200 usable to do that.
I bet this card has a little over 200 billion bytes of space. Just because the OS you chose doesn't measure storage in proper metric yet (1 KB = 1000 bytes, as opposed to nearest-power-of-two 1024 bytes) doesn't mean they're giving you less than they claim. Also filesystem data structures take up some space.
Yes, because it costs money to develop that shit. Because they have to bin a lot of chips. And because of profit. Sure it's retarded to buy a 200gb sd card, but as long as people are willinbg to do it, why not?
They actually don't bin a lot of chips. A 128 GB chip with 98% bad sectors might be sold as a 2 GB chip. They just put a little microcontroller chip in with it to string together the good bits into a single usable block for you.