So Costco is selling Picassos online. “But no one seems to remember that what Costco is doing is nothing new. Forty years ago, Sears, Roebuck & Co. was selling Picassos and Chagalls, not to mention Rembrandts, Dürers, Goyas, Whistlers, Mondrians and Wyeths, all of them bearing the imprimatur of a celebrated connoisseur who was better known for making such grisly movies as The Fly and House of Wax.”