所谓的“地位性商品”都是限量供应的，在别人得不到的情况下才是一种享受。
These "positional goods", as they are called, are in fixed supply: you can enjoy them only if others do not.
但是也有例外，如工艺品或限量版的商品，就像收藏品一样。
But there are exceptions, such as works of art or limited edition items like collectibles.
此纪念章设计新颖，工艺精良，配有上海世博会特许商品防伪标签，限量编号发行8888套。
With Shanghai world expo licensed merchandise security labels, these commemoratives are of novel design, sophisticated technology. The limited circulation is 8888.
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