I'm in Kalamazoo, too, and we search all the airports we can find to get a deal. It seems the best deals are usually through DTW but not always. We just booked Direct Air from Kalamazoo to SFB and are SO excited about flying from home. Not to mention that we got the best fares we could find at the time. They are just limited on days/times they fly. When we go, they are only flying Mondays and Fridays, but that works for us. If you're not tied into flying into MCO, there are more options. We were searching GR, Lansing, South Bend (nice airport...a lot like GR), Detroit, and even Toledo. Lansing seems to have good deals with Sun Country but the dates open up really late. Just keep searching and you'll come up with something you can live with.
Forgot to mention: Direct Air often has deals if you keep checking back with them. The one we got was $169 round trip including ALL fees and seat selection (except for check bag fees). They will also do buy one, get one free or half off fares. I see you're going in August as well. They're only flying Mondays and Fridays and the flights leave KZO at noon which is great for us!