Yeah, just like the supermarket club cards are good for shoppers. A similar psychological thing is going on in both cases I feel - some minority will manage to

Yeah, just like the supermarket club cards are good for shoppers. A similar psychological thing is going on in both cases I feel - some minority will manage to emerge winners due to a mixture of persistence, intelligence, luck, greed, etc. And the majority will get squeezed, or else how would such large percentages of marketing budgets continue to be pumped into club card and subscription schemes.