I think in previous years the price of the trek would go back up to $249 around late Oct / early Nov. I took the tour near Halloween and the guides said most of the tours were full or near full as the prices were increasing at the end of that week. $200+ is steep for a tour and for me sort of a mental barrier even if I have the cash ... but it is an amazing tour.
For a most 'bang for the buck' situation ... I really enjoyed the Marceline to Magic Kingdom tour. I remember it being very reasonably priced. I was concerned it was going to be a Keys to the Kingdom 'lite', but it covered topics and the MK from a different perspective. Several in the tour including myself had previously done the Keys tour, and still found the Marceline tour to be very enjoyable.