Kentucky Lottery Pick 3 Expected Payout

The expected payouts for the Kentucky Lottery Pick 3 game have an interesting idiosyncrasy. Playing the special "Straight Box" play pays out better than a separate 50¢ straight and 50¢ box play.

All other plays average 60¢ per dollar played, but the straight box seems to be 65¢ and 70¢, depending on the numbers played. Maybe my spreadsheet is wrong somewhere in here:

Kentucky Lottery Pick 3 Payouts and Odds