a) it's literally basic economics. Just because you didn't buy the mats on the AH doesn't mean they were free. You spent time on them. Sure, your time might be worth very little, but it's definitely not free
b) No, it's not planning ahead. It's "fixing" mistakes as they make them.
c) not an option
d) I don't want to be outraged. I just also won't defend dumb ass decisions.