I do carry hail insurance as I live in an area that sees hail often enough that it sure stays in your memory! Statistically, if you have deep enough pockets to endure a year with no income, then it is cheaper over the long run not to buy hail insurance and "self-insure" but sometimes you may be hailed out in the following year, too. Most farmers around me buy hail and wind insurance but there are some that don't.
At the stage this corn was in, with the tassel ready to pollinate this week, this corn is toast. We have had corn really stumped up when it was knee high and even though the field was totaled out with insurance, it made about 150 BPA. We had to harvest at low 30s for moisture and dry it as the bruised stalks were falling over and the corn was sprouting in the ears.
There may be some that try to green chop some corn but you can not touch it until it has been adjusted by the insurance agent and they are running behind this year. I actually just had my fields inspected and adjusted earlier on this day from two storms that came when the corn was knee high.....
From the news reports and people I have talked to, this bad hail covered an area about 60 miles by 20 miles.