e/Hoover free flights promotion

Information
has gloss	eng: The Hoover free flights promotion was a marketing promotion begun in 1992 in which the British division of The Hoover Company promised free airline tickets to customers who purchased more than £100 worth of their products. However, what Hoover had not anticipated was that huge numbers of customers started buying Hoover products not because they wanted the actual appliances, but simply because they wanted the tickets.
lexicalization	eng: Hoover free flights promotion
instance of	(noun) promotion that supplements or coordinates advertising sales promotion