Guys, Eevee is a fox-cat. Get it right. All Eeveelutions have a fox-like muzzle, but Espeon is mostly like a cat.
[on topic]
This list is made of fail. Seriously. The E-reader series had nothing going for them, and they were NOT sold at all. The whole E-Reader thing is a failed scheme by Nintendo. That, and the sets were obnoxiously long.
In terms of playability, I'd say...yeah Gym Heroes was fail. Fail. Fail. I like the concept of trainers and their Pokemon- leads to newer elements of gameplay that'll hopefully be revived in the new new set!- but it was just ruled far too much by Rocket's Scyther. You can't hit me until I roll a heads and actually take damage (bad against haymakers)? A permanent Smokescreen for just one energy? AND a T2 40, which was good for its time?
Don't even GET me started on Blaine's Moltres, Charity (seriously. What's the use in that old format?!), Blaine's Last Resort (worst. Wording. EVER. WHAT HAND IS THERE TO SHOW?), Tickling Machine, Blaine's Gamble...Way too many flippy things. Only thing that was a godsend back then was No Removal Gym. Just KILLED decks that ran all sorts of Whirlpool/Hyperbeam/ER/SER.
Diamond and Pearl fails as well, for above stated reasons cause I'm too lazy to type more. X3