We will be in town for the Indy 500 from Chicago to entertain my husband's boss who has never been. Hotels downtown seem to be completely booked or require 3 night stays. As my husband's boss wants to arrive Fri. May 26 and leave Sun. May 28 (after the race), there are very limited hotels available. Any suggestions on available hotels or how do you feel about the Radisson at the Airport? How far is it from downtown and the Speedway? Also, suggestions for entertaining in the evenings would be great. Also, are there any casinos nearby? Many thanks in advance for any advice!