Re: What about the second hand market?
It's only about new retail. Because the Second Hand phones don't use any special consumable.
People are STILL selling S/H Kodak instant cameras. Kodak had to withdraw them worldwide as they violated a REAL Polariod Instant photo patent. ... hmm better check.
After Land's instant camera invention was brought to market in 1948, a few different instant cameras were developed, some using Polaroid-compatible film such as cameras by Keystone, Konica, and Minolta. Others were incompatible with Polaroid cameras and film, the most notable of these being made by Kodak, such as the EK series and Kodamatic cameras. These cameras accepted a Kodak developed integral instant film, similar to Polaroid's SX-70 film. Kodak instant film was chemically similar to Polaroid with the exception that the negative was exposed from the rear and the dye/developers diffused to the front of the photogragh. This alleviated the need for a mirror to reverse the image before it struck the negative.
Even so, Polaroid brought a patent-infringement lawsuit against Kodak, and eventually Kodak was forced to stop manufacture of both the camera and film.  Kodak was also left to pay a settlement to customers who were left without a way to use their now defunct cameras. One settlement offered owners of Kodak instant cameras a credit towards a new Kodak camera. Many Kodak instant cameras still exist and can be found on auction sites. Kodak also lost the contract to manufacture Polaroid's negatives which subsequently took production in house.