Governor Pritzker figures that you might need an incentive to go out and get vaccinated against COVID-19, even after 70 percent of the state's adults have received at lease one vaccine dose.
Currently, there are eight states in the U.S. that offer "vaccine lotteries" as a way to encourage their citizens to get out and get the COVID-19 shot(s). Illinois wants to be the 9th state to do it.