MOS "I sort of have the feeling that "Warhol's laconic" is itself a 'readymade'"
Yep. :)
His color palette reflected the advertising colors used at the time. They remind me of the colors I see on casino slot machines, bright, flashy, showy colors. Much like the colors Lichenstein used, comic book colors.

BC
Dano thought Warhol's Campbell Soup Cans were art. Warhol hand painted all 32 varieties which were displayed at MOMA as follows:



His work and Lichenstein's work play on what they saw in ordinary life, they mimic the mass-produce culture of the time. Here are Warhol's Marilyns' this is a silk screen print.



His painting of 'Marilyn' is not Norma Jeane Mortenson, it's her as an iconic sex goddess, and not her as a person, this is similar to his treatment of the soup cans and Brillo Boxes. His painting emphasize the glitz, her stardom, the facets of her public persona. It is his statement about how we look at our idols, it is not about the work on canvas but what and how the work reflects culture at that time.

Their work raises the ordinary above what it is to give us a view to the culture that produces the objects we see every day, it invites us to think into the process of what culture has formed. It does justice to that critique, and I think their intrinsic worth lies in the vision they allow.

(BTW Jaume Plensa, "The Fountains" is considered to be Neo-Pop)

— Bitter Crank

... and get this:

http://www.ebay.co.uk/itm/NEWSWEEK-Roy-Lichtenstein-POP-ART-April-25-1966-Complete-/231699506279

Even that Magazine with that picture of the 'art work' is now being sold at auction as an 'art work'.

If nothing else, it was a good investment with a 2500% return on the original investment over about 50 years.

Meow!

GREG