<p>beyphy,</p>
<p>There are more high-caliber schools (mid-sized or larger) in the Midwest and Illinois actually has more competitors. WashU, Notre Dame, Northwestern, UChicago, Wisconsin and Michigan are good examples. Also, kids interested in business may pick Indiana and Indiana kids interested in engineering may choose the in-state Purdue. </p>
<p>Also, my guess is Californian kids would have a higher tendency to stay in-state because there’s really no good OOS alternatives within the 1000-mile radius.</p>