I was looking for a room for Mar 17 to the 20th. Based my research, you got a great rate for the time period of your stay. As you probably gathered the cheaper rates are in the summer and fall.
There is no entertainment rate for HRH for the week prior to your stay. The best entertainment rate, I was quoted was $169 for RPR standard room and I see the current quote on Hotel kingdom is $186 for RPR and $211 for HRH.
It is supply and demand. There is more demand than supply, so the rates are higher. Be happy and think about all the fun that you are going to have.
Dad of 3