From what I've heard, certain types of memory are only supported by certain CPUs/chipsets up to a certain size, and even though other types of memory are suppor

From what I've heard, certain types of memory are only supported by certain CPUs/chipsets up to a certain size, and even though other types of memory are supported, those are a more power-hungry variety that laptop makers tend to avoid. But in spirit, yes, this. The upgrade in RAM should be $80 in hardware, but I have to pay $900 for it because of the configuration options.