Not sure how expensive the raw material is for a mold but most are made out of a solid block of either aluminum or steel. It needs to be bigger than the part so a hood would need maybe a 4x4x2 chunk of steel. I would guess a hood would be made in a 500-750 ton press, takes a lot to withstand those pressures. Aluminum doesn't make as many parts without being refurbished. Although we are talking 30k cycles compared to 100k.
My experience is with fairly small parts, not sure what a hood mold would entail. Anyway you have tons of machine time to hog out the cavities. Cooling passages have to be machined so the molds don't get too hot. After machining, surfaces need polished and that's a hand operation in a lot of areas.
All of that adds up to a lot of man hours and who knows what a good mold maker gets paid per hour. $30.00? $50.00?
The thing that amazes me is how far in advance the design decisions have to be made in order to get the molds made and the parts in stock in time for the new year's production. If they make a redesign of a sled, they would have to be working 3 years in advance of release.
What about car makers? Kind of mind blowing.