Tom Huxley writes;
To some, they offer a little extra value to your $3.99 Marvel comic. To others,they provide a minor source of income, developing an after market on eBay. And of course, there are plenty of generous souls who give them away for free, either to friends or just complete strangers on Twitter.
But the codes, printed in those Marvel comics, offering a free digital copy of that comic to anyone who types them into their web site, have always been accompanied by an expiry date. Does that mean that your eBay aftermarket has a limited window? That the 'near mint' value of the phyiscal comic would suddenly depreciate a little, after a year? Or is it just a precaution on Marvel's part, just a guarantee that it'll work for the next year in case they want to change their policy down the line (or indeed take their web site down)?
Well, it turns out, it seems to fall under the 'precaution' category. As I found out earlier tonight as generous soul, @Tones68, shared his codes to Avenging Spider-Man issues 1 to 3 – a run that saw print at the end of 2011, well over a year ago – and discovered that codes that 'should' have expired… haven't.
— Justin Forsythe (@rogXue) March 21, 2013
— Mason Radcliffe (@masonrad) March 21, 2013
So you can carry on using, sharing and exchanging those codes till the cows come home – but if that doesn't float your boat, Comixology has another sale on tomorrow. 99 cents each for Captain America #600-619 and Captain America Reborn issues 1-6 (although at time of writing, issue 2 hasn't been included in the sale category yet). Includes the 100 page Captain America #616, which works out at less than 1 cent a page…