My wife and I just made a reservation in Hill City, SD during the rally for our 1st experience. We found a cabin that sleeps 6 with a BR and shower for just over $100/day. Of course we are 40 miles from the party. Interested in checking out the Chip and FTS.
If you haven't been to Hill City you'll like it, what ever you do steer clear of Slate Creek Grill, the food is nasty.