21.   He was also a serious collector of Western art.

22.   His company attracts serious collectors from around the world.

23.   In evidence were serious collectors, interior designers, and dealers, many of whom had made purchases at the Onassis auction.

24.   In this rich but relatively young city, the serious collectors are a little like rival dukes.

25.   It was clear to all serious record collectors that Vacco was not one.

26.   Linley, known for inlaid wood designs, has created an eyeglass cabinet for Elton John and other pieces for serious collectors around the world.

27.   Many of the people who attend this show are serious collectors of American Indian art, artifacts, jewelry and fashions.

28.   Most serious collectors concentrate on red Bordeaux because Bordeaux really has to be collected.

29.   Of all the classical-music performers known to Americans chiefly through recordings, few are better known to serious collectors than the Belgian conductor Philippe Herreweghe.

30.   Online wine delivery makes more sense now for the serious collector who wants to order cases of a particular brand or vintage.