^ it would also solidly cover educational expenses and income loss, etc, in the event one wanted to change careers. One could move to the industry of one's choosing with that kind of cushion.
The prize was paid out at $50k/year for 20 years. After taxes, that could cover a modest living in many parts of the country, but I'd agree that is not "quit your job/retire" money, even in the 90's.
The story calls him a "A $5-an-hour office supply store salesman", so at 2,000 hours a year it's $10,000. That makes the gross prize money five times his salary.