With the new FAQ a lot of cards have had text altered. I understand that a "card pack" would invalidate the purchases of certain models. Also, since the newer prints of these models/cards do contain the correct text; I would suggest an option wherein we can send in our old cards with outdated text and have them replaced with up to date cards. Maybe even with a fee to cover the costs of a person opening and replacing cards to be mailed back. In this way we can simplify the tournament scene and casual scene by not having to have a rules reference sheet for cards that are printed incorrectly now. By requiring the old cards you would still have sold the models that they came with originally and would be helping your customer base quite a bit. Also, by doing this you would make the community more receptive to future erratas and changes.

Any thoughts on the matter?

Sleeve the cards and print an overlay, the real card is still on hand but the correct rules are easily readable.

They can't reissue cards on a trade system because that takes too much time to sort through returned cards and ship out reprints to individuals.

They can't just put them up for sale because nobody will buy the original ships if they can get these cards separate.

I think @Jetfire has the right idea. You keep the card but print the original text and lay it on top. If your cards are sleeved, you could put the erratum print on one side and the have the original card on the other.

You mean like I send my cards to France and I get some French cards in return?