These kinds of various attempts to define the term indicates only that there are no universally arranged definition, and that the luxury market will be therefore indefinable across a diverse population – but can perhaps possibly be defined within social classes. It is therefore difficult for anyone supplying the extravagance market to outline their market: it is far easier to define your ‘affluent society’ regarding income or ‘disposable’ revenue, which is why it has been defined in the usa as the major 10% of American households regarding income.