^ I see where the new Ellipticor series drivers have an elliptical voice coil and magnet gap! Along with their proprietary magnet structure, these should be outstanding. However, it's going to take a bit to get used to the elliptical dust cover.
As for the shows, if you're on the fence, I recommend giving it a try. Do your homework, have a plan. Also, there is definitely plenty to do in Chicago when you need to step away from the audio show. Grab an Uber...