There are a couple of Intermediate or Advanced spots for sale at a discounted price for this weekends Western Michigan Honda Meet at Gingerman this weekend. (wmhm.org). (not mine, posting for a friend)

Normally it's $260 for 2 days of tracking, but these 2 spots are going for $200 each. See here: http://www.s2ki.com/forums/index.php?showtopic=715101