RE: ok, then yes..
Any Practice Stage, Press Stage or notecheck road poses additional staffing problems, as Bruce said. So there will be additional costs associated with that. Costs for the organizers, such as road use fees, probably will raise entry fees.
As an example, the road damage/repair costs for the Practice Stage at Cherokee will be high because multiple passes on an increasingly-familiar road lead to extreme corner cutting and resulting 7-10" ruts in the apexes. Speaking as a farmer & ex-soil conservation engineer, I know--and the Forest Service knows---that left unrepaired, ruts of this depth and width will wash out those corners in time. (The damage in this one stage was greater than anything else I saw on the route while riding in the "00" car.)
Practice or check-out stages mean added costs for the competitors--extra day(s) in a motel, meals, etc. which raise an entrant's per event cost. There's even added costs for the volunteer workers. (Hell, I spend as much now going to work a rally as I used to running one years ago. But does that stop me? Of course not, I'm hopelessly hooked.)
As some of you have already said, it's really a money issue. You know the old racing saying, "Speed costs money; how fast can you afford to go?" Looks like it now applies to rallying much more than in the past.
George the "on-a-mobile-chicane-budget" Gravelgeezer