But it's not.
That investor could've spent the 3600 on hookers and blackjack.
Investors freezing their money in communities in the form of real estate or other investment is a key part of those communites becoming richer and more complex.
There's a real risk of losing your money - there's no worse financial nightmare than holding real estate that you're trying to sell for years... but no-one is buying
I'm sure we can agree the vacant lot never improved itself. It's not unearned -- it's earned by the surrounding community improving things -- which make that lot more attractive.
The incentives don't align. If that community was to massively regress e.g. unfavorable rezoning -- the value of that lot would plummet.
However in this case it's likely to be partially addressed by paying land value taxes which disincentivizes leaving it vacant -- what Henry George was getting at and wasn't there at the time.
- Billboard posted in an empty lot, Rockford Illinois, 1914