You answered your own question — because you'd "give [yourself] a headache of 4000 photos with dozens of near identical shots to sift through".
It isn't the dollar-cost; it is the attention-cost.
When I shoot digital I might take forty shots of the same subject because there's movement and fractional differences in subject distance will visibly miss focus, so 10 fps.
When I shoot digital I might take one shot because exposure correct for highlights can be post-processed, so frame and focus.
You answered your own question — because you'd "give [yourself] a headache of 4000 photos with dozens of near identical shots to sift through".
It isn't the dollar-cost; it is the attention-cost.
When I shoot digital I might take forty shots of the same subject because there's movement and fractional differences in subject distance will visibly miss focus, so 10 fps.
When I shoot digital I might take one shot because exposure correct for highlights can be post-processed, so frame and focus.