Well, it IS a one-time cost for the threaded... especially when most of your pours are small, not requiring too many of them... and reusable. Snap ties are gone when they're used. Cost might easily balance out.
And Henry Ford's thinking on the bolt holes being ready for another kind of use is pretty neat. Good planning.
"True eloquence consists in saying all that is necessary, and only that which is."
François Duc de La Rochefoucauld
The lower holes in the wall serve as weep holes. The step forming goes as shown below. First the sidewalls are poured on a footer that extends into the step area. Extra vertical bar is placed in the footing to tie the steps.
The re-usable step forms are then clamped to the wall and adjusted to a position slightly above the desired step pour. Note that the plywood panel has 2x4 cleats with an angle bracket attached. Once the form is in position, hoes are drilled from the backside of the wall and bolts are used to secure the form in place.
Riser boards with an angled bottom are clamped to the angle bracket and then tapped into perfect position. Screws are used to secure them. Note that the risers press against the 2x4 cleats to carry the concrete load. Ready to pour.