Most pin-ups don't need to be good art, and therefore they are not. This is what economists call the efficiency of the marketplace: if customers don't buy pin-ups for artistic quality, it would be inefficient to waste time and money creating it.

For example, the famed pin-up artist Alberto Vargas is (in my opinion) an uninspired technician who paints realistically but with no apparent artistic ability. The same might be said for many of the other popular pin-up artists (despite the fact that their "art" is now published in fancy art books).
Of course, there are
non-artistic reasons to enjoy pin-up art. It's a wonderful celebration of the huge clanging dumbnicity of men:

Gene Weingarten wrote,
Many, many years ago, when God was still an adolescent, he decided that for the survival of the species, it was necessary that men be loathsome, prurient pigs.
And darned proud of it.
But in my opinion, there was at least one real talent in the field of pin-up art, the great George Petty. His well designed pictures and beautifully idealized forms stood out from his competitors.



Unlike many of his peers, Petty was a genuine artist who focused on design and composition. You can see his special gift in this assortment of graceful hands from his pin-ups. They look like a flock of birds taking flight.








I like Petty's work, especially his early years for
Esquire Magazine. You might flip through pin-ups by a hundred different artists, but Petty's quality stands out.