It's colloquially referred to in sales circles as the , "Puppy dog close." Before the internet and e-tailers it was considered a last resort and only for weak kneed salespeople. Management hated the puppy dog close because it meant open box product that had to be sold at a discount and took all sorts of extra paperwork and rigmarole. Take the puppy home for a few days and see how it works out...lol
But with today's lack of home audio retailers the online sales outlets need the tactic to encourage peeps to buy.