THE next time you visit an art museum, look around — not at the paintings, but at the people in the galleries. It’s a fair bet that women will outnumber men; even government statistics say so. More women than men study art, too, at both undergraduate and graduate levels. Art appreciation is a female predilection and so, you would think, is collecting. To buy art, you have to shop. Need I say anything about which sex has a proclivity for browsing — an essential element of buying, um, visual art?