Unfortunately, I noticed a new issue with my cards which, since I've seen it, has made it very difficult to play Dominion fairly. The color of the back of the cards is different.
Specifically, the back of my Adventures cards is lighter than the back of my other cards, including my Intrigue base cards and my Base Cards add on cards. I'll compare the color of the backs to the other expansions when I get the time later today, but as soon as I drew my hand after the first shuffle, I could tell 1 of the cards was different from the other 4, and it turned out to be the Adventures card... I kept noticing the lighter card backs of all my Adventures cards throughout the game.
My Intrigue base cards have been used a little bit, but not a ton, not enough to significantly darken (and don't cards fade over time, rather than darken?). It's really, really noticeable. I'm going to have to sink $60 into Euro black sleeves I guess... which also means I get to stop using 9-card binder pages to organize my cards... I'm really not happy about this. (By the way, if anyone can link me to cheaper opaque back sleeves, that would be cool, 3000 of these things ain't cheap)
Here's a few pictures. Even if you ignore the slight dinging of the older cards (which I can do as long as I don't specifically go looking for them), the card back makes it OBVIOUS which cards are which.
http://i.imgur.com/ZMErZPJ.jpg -
Second card from the left and second card from the right are Adventures.http://i.imgur.com/jESgQf2.jpg -
Middle card is from Adventures.http://i.imgur.com/nQGXqWD.jpg -
Bottom two cards are from Adventures.