Fake implies not real. No longer immediately assumed to be fraudulent, fake flowers, faux finishes, costume jewelry, fun fur and even fake art all have their place in our post pop, post modernist aesthetic.
Forgeries (real fakes that is, not fake fakes like mine) intend to deceive. The more they achieve this goal, the more valuable they are. Forgery works when the forger becomes invisible, and the viewer/buyer is fooled, But art about art is fakery exposed and manipulated on purpose by the artist. It takes art as the subject of the work itself. The original appears as if in quotations. It is the interplay of the primary and secondary levels that makes the pieces work.