My own utterly unscientific data suggests that this is a form of hyperbolically discounted loss-aversion - the 'loss' of the discount on additional units is felt more acutely than the more real loss of units purchased but never used.
Combining this principle with a time-limited offer can be staggeringly effective, I imagine by enhancing the sense of impending loss. I've seen orders-of-magnitude difference in revenue from such "new customer only" discounts.
Now if you'll excuse me, I'm going to have a bath in acetone to sluice off the shame.
Combining this principle with a time-limited offer can be staggeringly effective, I imagine by enhancing the sense of impending loss. I've seen orders-of-magnitude difference in revenue from such "new customer only" discounts.
Now if you'll excuse me, I'm going to have a bath in acetone to sluice off the shame.