collecting together and buying;  doing a big shop
 impulse buying;  impulse purchase
 speculatively buying a rice harvest, while the fields are still green;  recruiting of university students before the agreed date
 margin buying;  buying on credit
 binge shopping;  shopping spree
 buying futures;  speculation
 you get what you pay for; (lit.) wasting money on a cheap item
 buying a CD, book, etc. because of the cover
 buying a book, magazine because of its cover
 speculative buying;  buying long;  buying on margin
 buying a book, manga, etc. because one is a fan of the author
 buying a product because of the look of the packaging
 buying when the market is down
 buying more than one of the same item in different colors (colours)
 buying a CD, book, etc. because of the cover
 trial purchase;  buying on trial
 buying for immediate requirements;  buying just enough to fulfil one's needs;  spot purchasing
 going shopping on January 2
 buying by the carton (e.g. cigarettes, trading cards, etc.)
 buying a product because of the look of the packaging
 cornering the market;  stock cornering;  a corner