Sometimes the price of a specific piece of art will increase as more prints in the edition get sold. This is often done in the art world: as supply of a print run decreases, its value increases in conjunction with demand.
Our mission is to raise as much as money as possible for our charity partners, so for our most in-demand artworks we often start pricing lower and then gradually increase it as prints sell.
The flip side of this is that if you've purchased one of our artworks that is now sold out, your piece has significantly increased in value! We recommend getting it independently appraised and insured.