Why be bitter about something you missed because you weren't around back then? Manhattan was acquired by some Dutch guys for a handful of guilders back in 1626... That wasn't the end of real estate business.
Every era has its own opportunities. You should look around for stuff that's happening now, instead of looking back to what you might have done in 1993.
Real property isn't quite the same. With real property the owners have to pay taxes based on the land value which incentivizes owners to make use of the land.
With a short domain name, the owners waste the short name for the cheap price of domain registration ($20 max?).
Every era has its own opportunities. You should look around for stuff that's happening now, instead of looking back to what you might have done in 1993.