Many moons ago, I bought a 40 megabyte external hard drive for my Mac Plus, for $350. Today I purchased a one terabyte internal hard drive for my PC, for $53. That’s around nine dollars per megabyte versus one one-thousandth of a CENT per megabyte.
(My first true hard-drive failure. Very rough day, but luckily I got everything backed up onto an external hard drive. And I’m already backing that up to a new CrashPlan account.)