One of the knocks against instant film such as the new Polaroid Originals (i.e. Impossible Project ) instant film or Fuji Instax is the cost. This is usually somewhere around $1-$2.50 per image. Not exactly cheap no matter how you look at it.
There is something to keep in mind however. Instant film has never been cheap to shoot. I remember cost being one of the arguments against buying Polaroid cameras 35 years ago. Back then, as you can see from the scan of an old Sears catalogue, a pack of Polaroid SX-70 film cost $9.99 for 10 images. Seems ok right? Well a quick inflation adjustment calculation means that $10 in 1979 money is about $32 in today's money. So yes instant film has always been expensive. Not surprising when you consider the complexity of the chemistry and packaging of the film pack however.
By those standards today's Polaroid Originals film, which retails for about $15-$19 per pack of eight images is relatively affordable. Of course a simple inflation adjustment calculation doesn't mean that if the original Polaroid Corp. were still around and making film a new pack would cost $32. Outsourcing, optimization and other cost reductions would probably have kept the price from climbing that high.
Still, it pays to keep things in historical perspective when drawing conclusions about the cost of things. It's all relative.