Mixed reports are coming out of New York as the Armory Show and its 11 satellite fairs get under way this weekend.  Several heavy-weight galleries, such as Gagosian and Barbara Gladstone, have declined to attend for a second year running.  But this has given smaller galleries the opportunity to make the move into the main arena.  Apparently many significant American and European collectors and glitterati have been sighted but gallery owners are mixed in their reports of sales performance to date.