Atthetimeitwasmadeofcardboard, chargedthemember a $5 annualfeeandtherestaurant a 7% merchantfee.
当時は段ボール製で、会員には年会費5ドル、レストランには7%の加盟店手数料が請求された。
Although 7% sounds a lotbytoday's standards, McNamarasaidin a newspaperinterviewatthetime, itsavestherestaurantowners a lotofbookkeepingandthebotherofcollectingbaddebts.
Eventually, AmericanExpresswonandcametodominatethememberscardspace, despiteDinersClubhavingpioneeredmanyaspectsofAmericanExpress' businessmodel, suchasthecarditself, a travelbookingservice, and a membershippointssystem.
SomecommentatorsinonlineforumssuchasFlyertalkblamemanufacturedspendersfortakingadvantageofthecard's generouscategoriestoearnhugerewardswhichcostthecompany a lotofmoney.