When we bought our first PC, 1 GB harddisks were around but very rare and expensive, no average computer person had one. The guy we bought the computer from was a very rich man who had a need for lots of storage and he had a GB drive in his own computer (our computer had about 40mb storage as far as I can remember). I remember thinking how 1GB was so impressive- those drives were selling for over $1000 back then...
Now when I go to officeworks there are 1GB USB drives at the counter in the impulse buy section!!! - it's crazy when I think back to this guy and his amazing GB drive and the expense. I could have never imagined back then that in the future you'd be buying GB drives in the same way you'd buy a lollipop at the supermarket.