If it's a projected price, then the original commenter is still screwed if the birth becomes complicated. It's still a slot machine. Furthermore, it would incentivize sketchy practices like setting a lower base price than competitors but aggressively discovering (or manufacturing) complications so that the average price is considerably higher than the base price.
Not necessarily, it could be the hospital that gets screwed, they can eat the extra cost of the complications -- that could be factored into the base price, add X% to the bill account for the slight possibility of an unexpected complication.
