I haven't decided about Dayton this year. As much as I'd like to go, I have some personal mobility issues that sometimes make getting around difficult. I'm too prideful (and too cheap) to rent one of those scooters, so don't even suggest that.
If I go, it will probably be on Friday. I'll drive over in the morning, walk the inside exhibits to see what's new and talk to a few vendors, and drive back home that evening. I may go to the APRS forum, too.