My first engineering job was with Burroughs in the 1980s. We were making 100MB disk drives that weighed 70 lbs. A few years later I worked for Fujitsu on a 100MB 2.5-inch drive that weighed about 6 ounces. I can't remember how much either drive cost but it was probably over $1000. Earlier this week I was in Albuquerque and I saw an ancient 5MB disk drive the size of a washing machine. How many of these dime-sized 32GB flash drives ($23.61) would fit inside that 5MB drive's case?