if your a make settes and you decide you need say ,500 quid for it.
Infate the price by 100% sell it at that price for a couple of weeks and then put it in the Sale at 30% off for a few weeks,then extend the Sale and knock a further 20% off for a few more weeks. Then slightly change the model and call it something else and start all over again. Clever marketing and why do we fall for it? because we all like a bargain!