Does anyone know why the trading cards for this game are apparently no longer available to buy or trade anymore? I’m confused

A number of threads have been started commenting on "missing" games in the compilation. We'd like to clarify this is a collection of Atari's games, not a collection of games for the Atari 2600. Games like Pitfall, Pac Man, Berzerk, etc. are owned (and often made) by other companies. While we'd love to see many of our favourites released again, that's going to be up to the people who own those games. (For example, in the case of Pitfall, that's Activision.)...

The complete list of games includes: 3D Tic Tac Toe - 2600 Adventure - 2600 Air Sea Battle - 2600 Asteroids - 2600 Asteroids - Arcade Asteroids Deluxe - Arcade Backgammon - 2600 Basic Math - 2600 Basketball - 2600 Black Widow - Arcade Blackjack - 2600 Bo...

Due to the fact that you removed the DLC, people will no longer be able to complete all the achievements. How could you do this without an announcement?

I don't see Defender, E.T., Golf, Hangman, Indy 500, Joust, lots of others in this collection. And that's just the 2600 list. I know the Activision games aren't included, but they included some of the Mega games, which seems odd. I kind of understand why E.T. and Superman might not be included because of coyright issues, but I was hoping for all of the games, and there're some that are missing. Any thoughts?...