Yours is the only valid argument against the success of a Kodachrome revival. It is essential that the selling price of a revived Kodachrome and processing be affordable. But you know if you drive a cab which got its tank emptied, the only way for you to make a living out of it is to buy some gas first to fill it up again. At first your regular fares will not make you earn any money but once you get the money of the gas back you can make profits again.
thanks, i like to be validated, i get free parking and a cup of coffee that way

yeah i agree you gotta spend money to make money,
but my unprofessional, and uneducated guess is its more than a small amount of money.
certainly there are thousands, or even hundreds of thousands of peope who be buyers, but ..
in order for somethng to be viable those thousands or hundreds of thousands would have to buy it regularly
and at a high price point i think it would be a "special occasion" thing, people would have it in their cameras forever
because the film will be RARE and EXPENSIVE and they will not shoot it much .. and it would take even longer to buy a new roll ..
and that doens't even take into account the trickle of people needing it processed in unstable and expensive chemistry ...
now ... if they released a MASK to expose onto their ektachrome film when it is processed which TWEEKS the color palette of this film
that already exists, and because it is flashed onto the film it is PART of the film ...
that might be worth it, or have a FILTER they sell to put ON THE CAMERA that does it at the time of exposure ...
unfortunately kodachrome might extinct like a passenger pigeon or do-do bird, but that doesn't mean kodak can't release a way to have
what they DO sell to emulate what some of their customer base wants ...
YMMV