On the other hand, Ky has plenty of Midwestern states on its border: In, Oh, Ill, Mo - who's to say they can't go BIG? Ky basketball has long depended on Chicago Land talent, esp in the modern era.
Kentuckiana & the Ohio River Valley (ORV), & I'm kindly limiting this list to IU, Cincy, OSU, Lville, Ky, & Xavier, my opinion, has been the most successful basketball region for a long time, but the lack of a more singular conference has diminished its value when compared to say Tobacco Road and even all of Va. The ORV has superior numbers to any other region in terms of m. college basketball: NCAA titles, Final Fours, NCAA wins, etc. The above schools, which is not all of the great basketball programs in the ORV, has 19 NCAA titles, and around 50 Final Fours. But again, that list draws from 5 different conferences: BIG, AAC, ACC, SEC and Big East. Find another region, similar radius, it won't compare.