I bought mine off eBay three years ago for 35 pounds, plus 25 pounds postage. never let me down yet. Don't forget the cards are dedicated to work ONLY in the machine they are registered with.
After reading this I went straight to eBay and watched by the second as one after an other went for about 25 squid a box ..... 9 squid post England and 25 squid to Spain....(these were new style digiboxes)
DON'T BUY THEM IN SPAIN THEY'RE TOO EXPENSIVE.
Send them to a friend in England, then get'em sent here.