We stayed during the Good Sam Rally, so can't say what the actual cost of site was. It was included with tickets and shows. Surprised to get water, huge cable and 50 amp electric. Bring an adapter if you need 30 amp. No sewer. Sites only 20x40 so it's pretty tight for awnings and slides. All in all it's not bad. You are there for some kind of event and not at the rig much anyway. Everything was a huge walk. Just enough open grass to walk the dogs. Arrived with tanks empty so did not use the facilities. They sure were busy though. We camped here in a Fifth Wheel.
This is in the Speedway infield and is the Premium Geico Shores RV camping area. This area consists of adjacent paved 20' X 40' sites with a 15' grassed area in the rear bordering the chain-linked fence. One side borders the Lake Lloyd walkway, while the other borders Red Zone RV (grass) sites that are usually much cheaper. The Geico Shores area is completely fenced in and during speed and bike weeks they have guards at each gate. These sites are all pull-in or back-in. We paid $600 for 10-days that included two $175 infield passes, so on a per day basis it is very reasonable. Problems: There is no dump in the speedway and a sewer truck charges $35 per visit, also the showers and bathrooms are not 'Lady Quality" as I would not ask my wife to use either because they are not cleaned regularly. You can come and go during the races through the east (cars) and west (entry for RV's) tunnels. We camped here in a Motorhome.