Also they want to make money (and I don't blame them for that).
If they say "Hey, these boxes soon won't be available anymore for an unspecified period of time"
then a lot of people will probably spend money to get the remaining rare cards they need.
Yes thats the keyword. They wanna make "money" from us. I dislike their attitude towards this. They can bring in any excuses (cups,cater for players, anniversary..) to discont, re-release boxes whenever they like it. We are the suckers aren't we? :p
I think you aren't a new player, and maybe will struggle when new players get MW and such, but you realize that is very unfair you having cards that others can't even have a chance to get? There is many new F2P players in this game, also the ones who pay, that just started the game now, so Konami gave them equal chances