when we stayed at HRH, it was $5.00 day....
apparently, all the locals & people not staying a hotel were using the hotel parking lots for easier access to the parks.
This is why they instituted a charge.. Personally, I don't mind paying the fee if it means I can get a parking space close to the hotel.
When I stayed at the Poly in DIsney, took 20 minutes to find a parking spot..Know much of the cars that were their were day trippers, because when we came back late at night....had our choice of spots