I pick through, choose, price, and display donated art of all kinds for a local charity thrift store. From roughly 1,000 pictures per week, 200 are in good enough condition to sell, 200 are discarded as trash, the rest sold in bulk to another resale operation for .30 cents per pound. I see Ikea and other chain store art all the time. Many of those are re-salable, often at a higher prices than when new. Probably because that art is most always reasonably matted and framed.