An article provoking our notions! Banks, Investment Money magazine starts discussion on the subject.

⌠Let us look how DIFFICULT and EXPENSIVE it really can be for a merchant in Bulgaria to SELL! The country had in 2004 approximately 4,500,000 tourists. If every tourist spends during his ⌠6-night, 7-day vacation■ just EUR 500 for items that he buys on IMPULSE, the revenue would be 4,500,000 x EUR500 = EUR 2, 250,000,000. But he CAN NOT even if he WANTS to ≈ because most vendors do not accept credit cards!■.