I'm in SW ohio as well, and my trainer charges $40/hr for private lessons. You can't buy individuals, just a month pack. She's really nice about letting me have all the time in the world to tack up, then going over the hour during the lesson, and giving me half an hour to cool him off before untacking him. I used a lesson horse.
I feel so spoiled now... I've had two other lessons, one from a trainer that trains my trainer (If that makes sense) for $60, and a big-name trainer (so they told me) that was $120 for a clinic.