Offer your thoughts or opinion on the input financial query or topic using your financial background.

What's an economic explanation for why greeting cards are so expensive? 
(At least in the UK) a company named Card Factory has been very successful in undercutting the competition using the classic pile 'em high and sell 'em cheap strategy with less glamorous high-street locations than 'traditional' stores. Interestingly it doesn't seem to have spawned either competition at their price point or lowered the general prices for greetings cards even in low-margin businesses like supermarkets. A quick glance at their annual report suggests they're doing reasonably well with this approach.