The price for the 2019 National HDT Rally was $105 per person. However, there was an early registration discount of $10 making it only $95 per person. If you are staying on site at the Kansas State Fair RV Park, it’s $141 for the week (6 nights). The price of the 2020 National HDT Rally has not been determined yet. It is unlikely to change by much, if any from the 2019 rates.