Upscale retailer Saks Fifth Avenue in New York City, above, and other Saks stores are being bought for $2.1 billion in stock by Proffitt's Inc. Sunday's announcement said the combined company will have a total of 330 stores in 38 states and estimated 1998 revenues of more than $6 billion. The new parent company will change its name from Proffitt's to Saks Inc.